1173 + Interview Questions in Statistics Page 12 InterviewSolution

551.	Question 16If ¯x is the mean of x1,x2,……xn, then for a≠0, the mean of ax1,ax2,……axn,x1a,x2a,……xna is:A) (a+1a)¯xB) (a+1a)¯x2C) (a+1a)¯xnD) (a+1a)¯x2n
Answer» Question 16 If $¯ x$ is the mean of $x_{1}, x_{2}, \dots \dots x_{n}$ , then for $a \neq 0$ , the mean of $a x_{1}, a x_{2}, \dots \dots a x_{n}, \frac{x_{1}}{a}, \frac{x_{2}}{a}, \dots \dots \frac{x_{n}}{a}$ is: A) $(a + \frac{1}{a}) ¯ x$ B) $(a + \frac{1}{a}) \frac{¯ x}{2}$ C) $(a + \frac{1}{a}) \frac{¯ x}{n}$ D) $\frac{(a + \frac{1}{a}) ¯ x}{2 n}$

Discussion

552.	“The landscape is an inner one, a spiritual and conceptual space.”
Answer» “The landscape is an inner one, a spiritual and conceptual space.”

Discussion

553.	Find out the standard deviation of the marks secured by 10 students:S. No12345678910Marks43486557316037487859
Answer» Find out the standard deviation of the marks secured by $10$ students: $\begin{matrix} S. No & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 Marks & 43 & 48 & 65 & 57 & 31 & 60 & 37 & 48 & 78 & 59 \end{matrix}$

553.

Find out the standard deviation of the marks secured by 10 students:S. No12345678910Marks43486557316037487859

Answer»

Find out the standard deviation of the marks secured by $10$ students:

$\begin{matrix} S. No & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 Marks & 43 & 48 & 65 & 57 & 31 & 60 & 37 & 48 & 78 & 59 \end{matrix}$

Discussion

554.	26. Each coefficient in equation ax2+bx+c=0 is obtained by throwing a fair die.Find the probability that the equation have real roots.
Answer» 26. Each coefficient in equation ax2+bx+c=0 is obtained by throwing a fair die.Find the probability that the equation have real roots.

Discussion

555.	Calculate median in an asymmetrical distribution if mode is 83 and arithmetic mean is 92.
Answer» Calculate median in an asymmetrical distribution if mode is 83 and arithmetic mean is 92.

Discussion

556.	Write two such pairs of statistical variables that show cause and effect relationship with each other.
Answer» Write two such pairs of statistical variables that show cause and effect relationship with each other.

Discussion

557.	Give the basic difference between GDRs and ADRs.
Answer» Give the basic difference between GDRs and ADRs.

Discussion

558.	Following Trial Balance has been prepared wrongly. You are required to prepare a correct trial Balance. Name of AccountBalanceBalanceDr.(Rs)Cr.(Rs)Bank overdraft2,800−Cash in hand−400Purchase Return800−Sundry Expenditures−2,400SalesReturn−1,600Salaries1,600−Purchase5,600−Sales−8,800Creditors−2,400Debtors−1,600Opening Stock−2,000Plant and Machine4,000−Capital4,000−
Answer» Following Trial Balance has been prepared wrongly. You are required to prepare a correct trial Balance. $\begin{matrix} Name of Account & Balance & Balance Dr.(Rs) & Cr.(Rs) Bank overdraft & 2, 800 & - Cash in hand & - & 400 Purchase Return & 800 & - Sundry Expenditures & - & 2, 400 SalesReturn & - & 1, 600 Salaries & 1, 600 & - Purchase & 5, 600 & - Sales & - & 8, 800 Creditors & - & 2, 400 Debtors & - & 1, 600 Opening Stock & - & 2, 000 Plant and Machine & 4, 000 & - Capital & 4, 000 & - \end{matrix}$

558.

Following Trial Balance has been prepared wrongly. You are required to prepare a correct trial Balance. Name of AccountBalanceBalanceDr.(Rs)Cr.(Rs)Bank overdraft2,800−Cash in hand−400Purchase Return800−Sundry Expenditures−2,400SalesReturn−1,600Salaries1,600−Purchase5,600−Sales−8,800Creditors−2,400Debtors−1,600Opening Stock−2,000Plant and Machine4,000−Capital4,000−

Answer»

Following Trial Balance has been prepared wrongly. You are required to prepare a correct trial Balance.

$\begin{matrix} Name of Account & Balance & Balance Dr.(Rs) & Cr.(Rs) Bank overdraft & 2, 800 & - Cash in hand & - & 400 Purchase Return & 800 & - Sundry Expenditures & - & 2, 400 SalesReturn & - & 1, 600 Salaries & 1, 600 & - Purchase & 5, 600 & - Sales & - & 8, 800 Creditors & - & 2, 400 Debtors & - & 1, 600 Opening Stock & - & 2, 000 Plant and Machine & 4, 000 & - Capital & 4, 000 & - \end{matrix}$

Discussion

559.	Calculate standard deviation, given the following data:10, 12, 14, 16, 18, 22, 24, 26, 28
Answer» Calculate standard deviation, given the following data: 10, 12, 14, 16, 18, 22, 24, 26, 28

Discussion

560.	Calculate the simple aggregative price index on the basis of the following data: CommodityPrice (Rs) in 2006Price (Rs) in 2008Rice120180Wheat 80100Oil300400Pulses130180Sugar150200
Answer» Calculate the simple aggregative price index on the basis of the following data: $\begin{matrix} Commodity & Price (Rs) in 2006 & Price (Rs) in 2008 Rice & 120 & 180 Wheat & 80 & 100 Oil & 300 & 400 Pulses & 130 & 180 Sugar & 150 & 200 \end{matrix}$

560.

Calculate the simple aggregative price index on the basis of the following data: CommodityPrice (Rs) in 2006Price (Rs) in 2008Rice120180Wheat 80100Oil300400Pulses130180Sugar150200

Answer»

Calculate the simple aggregative price index on the basis of the following data:

$\begin{matrix} Commodity & Price (Rs) in 2006 & Price (Rs) in 2008 Rice & 120 & 180 Wheat & 80 & 100 Oil & 300 & 400 Pulses & 130 & 180 Sugar & 150 & 200 \end{matrix}$

Discussion

561.	Covariance of X and Y is given by the formula, Cov(X,Y) = ___
Answer» Covariance of X and Y is given by the formula, Cov(X,Y) = ___

Discussion

562.	Q1. In the assessment of autism, two types of assessment tools are being recommended, consider the following statements: 1. One is International Clinical Epidemiology Network INCLEN Tool developed under INCLEN study – “Neuro Developmental Disorder in Children in India” 2. The other tool is Indian Scale of Assessment of Autism (ISAA) developed by the Ministry of SJ&E. Which of the statements are correct?
Answer» Q1. In the assessment of autism, two types of assessment tools are being recommended, consider the following statements: 1. One is International Clinical Epidemiology Network INCLEN Tool developed under INCLEN study – “Neuro Developmental Disorder in Children in India” 2. The other tool is Indian Scale of Assessment of Autism (ISAA) developed by the Ministry of SJ&E. Which of the statements are correct?

562.

Q1. In the assessment of autism, two types of assessment tools are being recommended, consider the following statements: 1. One is International Clinical Epidemiology Network INCLEN Tool developed under INCLEN study – “Neuro Developmental Disorder in Children in India” 2. The other tool is Indian Scale of Assessment of Autism (ISAA) developed by the Ministry of SJ&E. Which of the statements are correct?

Answer»

Q1. In the assessment of autism, two types of assessment tools are being recommended, consider the following statements:

1. One is International Clinical Epidemiology Network INCLEN Tool developed under INCLEN study – “Neuro Developmental Disorder in Children in India”

2. The other tool is Indian Scale of Assessment of Autism (ISAA) developed by the Ministry of SJ&E.

Which of the statements are correct?

Discussion

563.

Draw a frequency polygon from the following data by using (i) histogram, and (ii) without using histogram: Daily Wages (in ₹) 10−15 15−20 20−25 25−30 30−35 Number of Workers 40 70 60 80 60

Answer» Draw a frequency polygon from the following data by using (i) histogram, and (ii) without using histogram:

Daily Wages (in ₹)	10−15	15−20	20−25	25−30	30−35
Number of Workers	40	70	60	80	60

Discussion

564.

The following table shows wages of the workers. Calculate the average wage of the workers. Wages (₹) 10−19 20−29 30−39 40−49 50−59 Number of Workers 8 9 12 11 6

Answer» The following table shows wages of the workers. Calculate the average wage of the workers.

Wages (₹)	10−19	20−29	30−39	40−49	50−59
Number of Workers	8	9	12	11	6

Discussion

565.	Define statistics in plural sense. Give its any two characteristics.
Answer» Define statistics in plural sense. Give its any two characteristics.

Discussion

566.	Mention the importance or significance of correlation.
Answer» Mention the importance or significance of correlation.

Discussion

567.

Calculate standard deviation of marks secured by 100 examinees in the examination: Marks 10−20 20−30 30−40 40−50 50−60 60−70 70−80 80−90 Number of Examinees 19 3 2 49 24 2 0 1

Answer» Calculate standard deviation of marks secured by 100 examinees in the examination:

Marks	10−20	20−30	30−40	40−50	50−60	60−70	70−80	80−90
Number of Examinees	19	3	2	49	24	2	0	1

Discussion

568.	The dot product and cross product
Answer» The dot product and cross product

Discussion

569.

Using assumed average in Karl Pearson's formula, calculate coefficient of correlation, given the following data: X 78 89 97 69 59 79 68 61 Y 125 137 156 112 107 106 123 138

Answer» Using assumed average in Karl Pearson's formula, calculate coefficient of correlation, given the following data:

X	78	89	97	69	59	79	68	61
Y	125	137	156	112	107	106	123	138

Discussion

570.

↵Plot the annual profits of a firm on a time series graph: Year 2013 2014 2015 2016 2017 2018 Profit ('000 ₹) 60 72 75 65 80 95

Answer» ↵Plot the annual profits of a firm on a time series graph:

Year	2013	2014	2015	2016	2017	2018
Profit ('000 ₹)	60	72	75	65	80	95

Discussion

571.	Class mark of a class = _____.
Answer» Class mark of a class = _____.

Discussion

572.	What is a variable? Distinguish between a discrete and a continuous variable.
Answer» What is a variable? Distinguish between a discrete and a continuous variable.

Discussion

573.	"Small Industries are small in size but play a big role in the development of rural areas". Explain briefly the role of small industries in rural areas.
Answer» "Small Industries are small in size but play a big role in the development of rural areas". Explain briefly the role of small industries in rural areas.

Discussion

574.	Question 9The following table gives the literacy rate (in percentage) of 35 cities. Find the mean literacy rate.Literacy rate (in %)45−5555−6565−7575−8585−95Number of cities3101183
Answer» Question 9 The following table gives the literacy rate (in percentage) of 35 cities. Find the mean literacy rate. $\begin{matrix} Literacy rate (in %) & 45 - 55 & 55 - 65 & 65 - 75 & 75 - 85 & 85 - 95 Number of cities & 3 & 10 & 11 & 8 & 3 \end{matrix}$

574.

Question 9The following table gives the literacy rate (in percentage) of 35 cities. Find the mean literacy rate.Literacy rate (in %)45−5555−6565−7575−8585−95Number of cities3101183

Answer»

Question 9

The following table gives the literacy rate (in percentage) of 35 cities. Find the mean literacy rate.

$\begin{matrix} Literacy rate (in %) & 45 - 55 & 55 - 65 & 65 - 75 & 75 - 85 & 85 - 95 Number of cities & 3 & 10 & 11 & 8 & 3 \end{matrix}$

Discussion

575.	Calculate the mean deviation about the median for the following data: Class16−2021−2526−3031−3536−4041−4546−5051−55Frequency5612142612169
Answer» Calculate the mean deviation about the median for the following data: $\begin{matrix} Class & 16 - 20 & 21 - 25 & 26 - 30 & 31 - 35 & 36 - 40 & 41 - 45 & 46 - 50 & 51 - 55 Frequency & 5 & 6 & 12 & 14 & 26 & 12 & 16 & 9 \end{matrix}$

575.

Calculate the mean deviation about the median for the following data: Class16−2021−2526−3031−3536−4041−4546−5051−55Frequency5612142612169

Answer»

Calculate the mean deviation about the median for the following data:

$\begin{matrix} Class & 16 - 20 & 21 - 25 & 26 - 30 & 31 - 35 & 36 - 40 & 41 - 45 & 46 - 50 & 51 - 55 Frequency & 5 & 6 & 12 & 14 & 26 & 12 & 16 & 9 \end{matrix}$

Discussion

576.	Which of the following is/are likely to show positive correlation?
Answer» Which of the following is/are likely to show positive correlation?

Discussion

577.

Find out mode, given the following information: Size 6−10 11−15 16−20 21−25 26−30 Frequency 20 30 50 40 10

Answer» Find out mode, given the following information:

Size	6−10	11−15	16−20	21−25	26−30
Frequency	20	30	50	40	10

Discussion

578.	Average income of 50 families is ₹3,000. Of these average income of 12 families is ₹1,800. Find out the average income of the remaining families.
Answer» Average income of 50 families is ₹3,000. Of these average income of 12 families is ₹1,800. Find out the average income of the remaining families.

Discussion

579.	Two similar sonometer wires given fundamental frequencies of 500Hz. These have same tensions. By what amount the tension be increased in one wire so that the two wires produce 5 beats/sec [RPET 1999]
Answer» Two similar sonometer wires given fundamental frequencies of 500Hz. These have same tensions. By what amount the tension be increased in one wire so that the two wires produce 5 beats/sec [RPET 1999]

579.

Two similar sonometer wires given fundamental frequencies of 500Hz. These have same tensions. By what amount the tension be increased in one wire so that the two wires produce 5 beats/sec [RPET 1999]

Answer»

Two similar sonometer wires given fundamental frequencies of 500Hz. These have same tensions. By what amount the tension be increased in one wire so that the two wires produce 5 beats/sec

[RPET 1999]

Discussion

580.	Calculate the median and third quartile using the following data: Mid- Points marks515253545556575No. of students3101776421
Answer» Calculate the median and third quartile using the following data: $\begin{matrix} Mid- Points marks & 5 & 15 & 25 & 35 & 45 & 55 & 65 & 75 No. of students & 3 & 10 & 17 & 7 & 6 & 4 & 2 & 1 \end{matrix}$

Discussion

581.	A manufacturer sends out car toys to various toy retail stores. This is an example of
Answer» A manufacturer sends out car toys to various toy retail stores. This is an example of

Discussion

582.	A set of n values x1, x2, ...., xn has standard deviation σ. The standard deviation of n values x1 + k, x2 + k,..., xn + k will be(a) σ (b) σ + k (c) σ – k (d) kσ
Answer» A set of n values x₁, x₂, ...., x_n has standard deviation σ. The standard deviation of n values x₁+ k, x₂+ k,..., x_n+ k will be (a) σ (b) σ + k (c) σ – k (d) k^σ

Discussion

583.	Identify the incorrect statement regarding Statistics.
Answer» Identify the incorrect statement regarding Statistics.

Discussion

584.	A survey was conducted on 20 families in a locality by a group of students .What will be the mode of the data?Age of family member0−2020−4040−6060−8080−100 Number of students78221
Answer» A survey was conducted on 20 families in a locality by a group of students .What will be the mode of the data? $\begin{matrix} Age of family member & 0 - 20 & 20 - 40 & 40 - 60 & 60 - 80 & 80 - 100 Number of students & 7 & 8 & 2 & 2 & 1 \end{matrix}$

584.

A survey was conducted on 20 families in a locality by a group of students .What will be the mode of the data?Age of family member0−2020−4040−6060−8080−100 Number of students78221

Answer»

A survey was conducted on 20 families in a locality by a group of students .What will be the mode of the data?

$\begin{matrix} Age of family member & 0 - 20 & 20 - 40 & 40 - 60 & 60 - 80 & 80 - 100 Number of students & 7 & 8 & 2 & 2 & 1 \end{matrix}$

Discussion

585.	Write a program that uses a user-defined function that accepts name and gender (as M for Male, F for Female) and prefixes Mr/Ms on the basis of the gender.
Answer» Write a program that uses a user-defined function that accepts name and gender (as M for Male, F for Female) and prefixes Mr/Ms on the basis of the gender.

Discussion

586.	Let F1 be the frequency of second line of lyman series and F2 be the frequency of the first line of balmer series then frequency of first line of lyman series is given by
Answer» Let F1 be the frequency of second line of lyman series and F2 be the frequency of the first line of balmer series then frequency of first line of lyman series is given by

Discussion

587.	Derive time independent schrodinger equation in simple terms
Answer» Derive time independent schrodinger equation in simple terms

Discussion

588.	"You have unlimited wants and limited resources to satisfy them." Explain this statement by giving two examples.
Answer» "You have unlimited wants and limited resources to satisfy them." Explain this statement by giving two examples.

Discussion

589.	The mean of the above frequency distribution is 3.5, then find the value of x.Variable12x45Frequency23456
Answer» The mean of the above frequency distribution is 3.5, then find the value of x. $\begin{matrix} V a r i a b l e & 1 & 2 & x & 4 & 5 F r e q u e n c y & 2 & 3 & 4 & 5 & 6 \end{matrix}$

Discussion

590.	A) If mean of a series is 30 and mode is 25. Find Median. B) Which value is compromised with the rising wholesale price index?
Answer» A) If mean of a series is 30 and mode is 25. Find Median. B) Which value is compromised with the rising wholesale price index?

590.

A) If mean of a series is 30 and mode is 25. Find Median. B) Which value is compromised with the rising wholesale price index?

Answer»

A) If mean of a series is 30 and mode is 25. Find Median.

B) Which value is compromised with the rising wholesale price index?

Discussion

591.	Calculate the mean deviation from the median of the following data. Class10−2020−3030−4040−5050−6060−7070−80Frequency 4 6 10 20 10 6 4
Answer» Calculate the mean deviation from the median of the following data. $\begin{matrix} Class & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 & 60 - 70 & 70 - 80 Frequency & 4 & 6 & 10 & 20 & 10 & 6 & 4 \end{matrix}$

Discussion

592.

Draw 'less than' as well as 'more than' ogives for the following data: Weight (in Kg) 30−34 35−39 40−44 45−49 50−54 55−59 60−64 Frequency 3 5 12 18 14 6 2

Answer» Draw 'less than' as well as 'more than' ogives for the following data:

Weight (in Kg)	30−34	35−39	40−44	45−49	50−54	55−59	60−64
Frequency	3	5	12	18	14	6	2

Discussion

593.

Find out the index number of the following data with Laspeyre's Method: Year 2016 2017 Price Quantity Price Quantity A B 70 62 7 3 80 74 6 2

Answer» Find out the index number of the following data with Laspeyre's Method:

Year	2016		2017
Year	Price	Quantity	Price	Quantity
A B	70 62	7 3	80 74	6 2

Discussion

594.

Waht do you mean by a circular diagram? Present the data on the expenditure of a labour-family in the form of a circular diagram: Items of Expenditure Food Clothing Housing Fuel and Light Others Percentage of Income Spent 65 15 12 5 3

Answer» Waht do you mean by a circular diagram? Present the data on the expenditure of a labour-family in the form of a circular diagram:

Items of Expenditure	Food	Clothing	Housing	Fuel and Light	Others
Percentage of Income Spent	65	15	12	5	3

Discussion

595.

Find out mean deviation of the following series from mean and median: Size 4 6 8 10 12 14 16 Frequency 2 4 5 31 2 1 4

Answer» Find out mean deviation of the following series from mean and median:

Size	4	6	8	10	12	14	16
Frequency	2	4	5	31	2	1	4

Discussion

596.	Significant figures depend on ________ number of significant figures in given data.
Answer» Significant figures depend on ________ number of significant figures in given data.

Discussion

597.	Which of the following effects shows that some people consider the price of a commodity as the true indicator of its quality?
Answer» Which of the following effects shows that some people consider the price of a commodity as the true indicator of its quality?

Discussion

598.

Calculate the correlation coefficient between X and Y and comment on their relationshipX134578Y268101416

Answer»

Calculate the correlation coefficient between X and Y and comment on their relationship

X	1	3	4	5	7	8
Y	2	6	8	10	14	16

Discussion

599.

Calculate the median and mode from the following data: Marks 0−10 10−20 20−30 30−40 40−50 50−60 60−70 70−80 Number of Students 2 18 30 45 35 20 6 3

Answer» Calculate the median and mode from the following data:

Marks	0−10	10−20	20−30	30−40	40−50	50−60	60−70	70−80
Number of Students	2	18	30	45	35	20	6	3

Discussion

600.	A price index two items of A and B is being estimated. If two items are assigned weights of 64 and 36 respectively, the price index becomes 279. Similarly, if they are assigned weights of 50 each, the price index turns out to be 265. Determine the individual price index numbers of items A and B.
Answer» A price index two items of A and B is being estimated. If two items are assigned weights of 64 and 36 respectively, the price index becomes 279. Similarly, if they are assigned weights of 50 each, the price index turns out to be 265. Determine the individual price index numbers of items A and B.

Discussion

Explore topic-wise InterviewSolutions in .

Question 16If ¯x is the mean of x1,x2,……xn, then for a≠0, the mean of ax1,ax2,……axn,x1a,x2a,……xna is:A) (a+1a)¯xB) (a+1a)¯x2C) (a+1a)¯xnD) (a+1a)¯x2n

“The landscape is an inner one, a spiritual and conceptual space.”

Find out the standard deviation of the marks secured by 10 students:S. No12345678910Marks43486557316037487859

26. Each coefficient in equation ax2+bx+c=0 is obtained by throwing a fair die.Find the probability that the equation have real roots.

Calculate median in an asymmetrical distribution if mode is 83 and arithmetic mean is 92.

Write two such pairs of statistical variables that show cause and effect relationship with each other.

Give the basic difference between GDRs and ADRs.

Calculate standard deviation, given the following data:10, 12, 14, 16, 18, 22, 24, 26, 28

Calculate the simple aggregative price index on the basis of the following data: CommodityPrice (Rs) in 2006Price (Rs) in 2008Rice120180Wheat 80100Oil300400Pulses130180Sugar150200

Covariance of X and Y is given by the formula, Cov(X,Y) = ___

Draw a frequency polygon from the following data by using (i) histogram, and (ii) without using histogram: Daily Wages (in ₹) 10−15 15−20 20−25 25−30 30−35 Number of Workers 40 70 60 80 60

The following table shows wages of the workers. Calculate the average wage of the workers. Wages (₹) 10−19 20−29 30−39 40−49 50−59 Number of Workers 8 9 12 11 6

Define statistics in plural sense. Give its any two characteristics.

Mention the importance or significance of correlation.

Calculate standard deviation of marks secured by 100 examinees in the examination: Marks 10−20 20−30 30−40 40−50 50−60 60−70 70−80 80−90 Number of Examinees 19 3 2 49 24 2 0 1

The dot product and cross product

Using assumed average in Karl Pearson's formula, calculate coefficient of correlation, given the following data: X 78 89 97 69 59 79 68 61 Y 125 137 156 112 107 106 123 138

↵Plot the annual profits of a firm on a time series graph: Year 2013 2014 2015 2016 2017 2018 Profit ('000 ₹) 60 72 75 65 80 95

Class mark of a class = _____.

What is a variable? Distinguish between a discrete and a continuous variable.

"Small Industries are small in size but play a big role in the development of rural areas". Explain briefly the role of small industries in rural areas.

Question 9The following table gives the literacy rate (in percentage) of 35 cities. Find the mean literacy rate.Literacy rate (in %)45−5555−6565−7575−8585−95Number of cities3101183

Calculate the mean deviation about the median for the following data: Class16−2021−2526−3031−3536−4041−4546−5051−55Frequency5612142612169

Which of the following is/are likely to show positive correlation?

Find out mode, given the following information: Size 6−10 11−15 16−20 21−25 26−30 Frequency 20 30 50 40 10

Average income of 50 families is ₹3,000. Of these average income of 12 families is ₹1,800. Find out the average income of the remaining families.

Two similar sonometer wires given fundamental frequencies of 500Hz. These have same tensions. By what amount the tension be increased in one wire so that the two wires produce 5 beats/sec [RPET 1999]

Calculate the median and third quartile using the following data: Mid- Points marks515253545556575No. of students3101776421

A manufacturer sends out car toys to various toy retail stores. This is an example of

A set of n values x1, x2, ...., xn has standard deviation σ. The standard deviation of n values x1 + k, x2 + k,..., xn + k will be(a) σ (b) σ + k (c) σ – k (d) kσ

Identify the incorrect statement regarding Statistics.

A survey was conducted on 20 families in a locality by a group of students .What will be the mode of the data?Age of family member0−2020−4040−6060−8080−100 Number of students78221

Write a program that uses a user-defined function that accepts name and gender (as M for Male, F for Female) and prefixes Mr/Ms on the basis of the gender.

Let F1 be the frequency of second line of lyman series and F2 be the frequency of the first line of balmer series then frequency of first line of lyman series is given by

Derive time independent schrodinger equation in simple terms

"You have unlimited wants and limited resources to satisfy them." Explain this statement by giving two examples.

The mean of the above frequency distribution is 3.5, then find the value of x.Variable12x45Frequency23456

A) If mean of a series is 30 and mode is 25. Find Median. B) Which value is compromised with the rising wholesale price index?

Calculate the mean deviation from the median of the following data. Class10−2020−3030−4040−5050−6060−7070−80Frequency 4 6 10 20 10 6 4

Draw 'less than' as well as 'more than' ogives for the following data: Weight (in Kg) 30−34 35−39 40−44 45−49 50−54 55−59 60−64 Frequency 3 5 12 18 14 6 2

Find out the index number of the following data with Laspeyre's Method: Year 2016 2017 Price Quantity Price Quantity A B 70 62 7 3 80 74 6 2

Waht do you mean by a circular diagram? Present the data on the expenditure of a labour-family in the form of a circular diagram: Items of Expenditure Food Clothing Housing Fuel and Light Others Percentage of Income Spent 65 15 12 5 3

Find out mean deviation of the following series from mean and median: Size 4 6 8 10 12 14 16 Frequency 2 4 5 31 2 1 4

Significant figures depend on ________ number of significant figures in given data.

Which of the following effects shows that some people consider the price of a commodity as the true indicator of its quality?

Calculate the correlation coefficient between X and Y and comment on their relationshipX134578Y268101416

Calculate the median and mode from the following data: Marks 0−10 10−20 20−30 30−40 40−50 50−60 60−70 70−80 Number of Students 2 18 30 45 35 20 6 3

A price index two items of A and B is being estimated. If two items are assigned weights of 64 and 36 respectively, the price index becomes 279. Similarly, if they are assigned weights of 50 each, the price index turns out to be 265. Determine the individual price index numbers of items A and B.