1173 + Interview Questions in Statistics Page 11 InterviewSolution

501.	Find the mean of the step deviations: ClassFrequencyClass markdiui=dihinterval(fi)(xi)(xi−a)0−1004050−200−2100−20039150−100−1200−3003425000300−400303501001400−500454502002
Answer» Find the mean of the step deviations: $\begin{matrix} C l a s s & F r e q u e n c y & C l a s s m a r k & d_{i} & u_{i} = \frac{d_{i}}{h} i n t e r v a l & (f_{i}) & (x_{i}) & (x_{i} - a) 0 - 100 & 40 & 50 & - 200 & - 2 100 - 200 & 39 & 150 & - 100 & - 1 200 - 300 & 34 & 250 & 0 & 0 300 - 400 & 30 & 350 & 100 & 1 400 - 500 & 45 & 450 & 200 & 2 \end{matrix}$

Discussion

502.	How does the understanding of culture in social science differ from the everyday use of the word `culture’?
Answer» How does the understanding of culture in social science differ from the everyday use of the word `culture’?

Discussion

503.	Question 11Size of agricultural holdings in a survey of 200 families is given in the following tableSize of agricultural holdings(in hec)Number of families0−5 105−10 1510−15 3015−20 8020−25 4025−30 2030−35 5Compute median and size of the holdings.
Answer» Question 11 Size of agricultural holdings in a survey of 200 families is given in the following table $\begin{matrix} S i z e o f a g r i c u l t u r a l h o l d i n g s (i n h e c) & N u m b e r o f f a m i l i e s 0 - 5 & 10 5 - 10 & 15 10 - 15 & 30 15 - 20 & 80 20 - 25 & 40 25 - 30 & 20 30 - 35 & 5 \end{matrix}$ Compute median and size of the holdings.

Discussion

504.	The mean of the series x1,x2,x3,.......,xn is ¯x. If x2 is replaced by λ, then the new mean is
Answer» The mean of the series $x_{1}, x_{2}, x_{3}, . . . . . . ., x_{n}$ is $¯ x$ . If $x_{2}$ is replaced by $λ$ , then the new mean is

Discussion

505.	3. What is log function in detail
Answer» 3. What is log function in detail

Discussion

506.	Identify the type of classification of the below table. Distance of cities from Bangalore (km)No. of companies1040202030304010
Answer» Identify the type of classification of the below table. $\begin{matrix} Distance of cities from Bangalore (km) & No. of companies 10 & 40 20 & 20 30 & 30 40 & 10 \end{matrix}$

Discussion

507.	Locate median of the following distribution : Variable (X)10111213141516Frequency (f)815252012105
Answer» Locate median of the following distribution : $\begin{matrix} Variable (X) & 10 & 11 & 12 & 13 & 14 & 15 & 16 Frequency (f) & 8 & 15 & 25 & 20 & 12 & 10 & 5 \end{matrix}$

507.

Locate median of the following distribution : Variable (X)10111213141516Frequency (f)815252012105

Answer»

Locate median of the following distribution :

$\begin{matrix} Variable (X) & 10 & 11 & 12 & 13 & 14 & 15 & 16 Frequency (f) & 8 & 15 & 25 & 20 & 12 & 10 & 5 \end{matrix}$

Discussion

508.

Calculate mode of the following distribution: Marks 10−19 20−29 30−39 40−49 50−59 60−69 70−79 80−89 90−99 Number of Students 29 87 181 247 263 133 40 9 2

Answer» Calculate mode of the following distribution:

Marks	10−19	20−29	30−39	40−49	50−59	60−69	70−79	80−89	90−99
Number of Students	29	87	181	247	263	133	40	9	2

Discussion

509.	Which values of a class are known as limits?
Answer» Which values of a class are known as limits?

Discussion

510.	Which of the following statement(s) is/are correctly stated? Codes :
Answer» Which of the following statement(s) is/are correctly stated? Codes :

510.

Which of the following statement(s) is/are correctly stated? Codes :

Answer»

Which of the following statement(s) is/are correctly stated?

Codes :

Discussion

511.

In a Fancy-dress competition, two judges accorded the following ranks to eight participants: Judge X 8 7 6 3 2 1 5 4 Judge Y 7 5 4 1 3 2 6 8 Calculate coefficient of rank correlation.

Answer» In a Fancy-dress competition, two judges accorded the following ranks to eight participants:

Judge X	8	7	6	3	2	1	5	4
Judge Y	7	5	4	1	3	2	6	8

Calculate coefficient of rank correlation.

Discussion

512.

Of the two sets of income distribution of five and seven persons respectively, as given below calculate standard deviation: (i) Income (₹) 4,000 4,200 4,400 4,600 4,800 (ii) Income (₹) 3,000 4,000 4,200 4,400 4,600 4,800 5,800

Answer» Of the two sets of income distribution of five and seven persons respectively, as given below calculate standard deviation:

(i) Income (₹)	4,000	4,200	4,400	4,600	4,800
(ii) Income (₹)	3,000	4,000	4,200	4,400	4,600	4,800	5,800

Discussion

513.	Today is Rahul's birthday and he plans to host a party at a high-end restaurant. He realises that his budget is Rs 2000 and he picks a cheaper restaurant. This is a case of ___.
Answer» Today is Rahul's birthday and he plans to host a party at a high-end restaurant. He realises that his budget is Rs 2000 and he picks a cheaper restaurant. This is a case of ___.

Discussion

514.	The ratings of 6 laptops in two websites A and B are given below. Find the rank coefficient for the ratings of the two websites. LaptopsABL178L28.59.5L39.58L488L58.56.5L67.57.5
Answer» The ratings of 6 laptops in two websites A and B are given below. Find the rank coefficient for the ratings of the two websites. $\begin{matrix} L a p t o p s & A & B L_{1} & 7 & 8 L_{2} & 8.5 & 9.5 L_{3} & 9.5 & 8 L_{4} & 8 & 8 L_{5} & 8.5 & 6.5 L_{6} & 7.5 & 7.5 \end{matrix}$

Discussion

515.	Calculate the standard deviation of the following 38, 40, 34, 31, 28, 26, 34
Answer» Calculate the standard deviation of the following 38, 40, 34, 31, 28, 26, 34

Discussion

516.	Non-sampling errors can be minimised by taking large samples (true/ false).
Answer» Non-sampling errors can be minimised by taking large samples (true/ false).

Discussion

517.	Construct index number of industrial production from the following data: IndustryUnitBase yearCurrent YearWeightElectricalMill, Nos.52320Mining Th. Tonnes55210917ManufacturingMill. Nos.22399963
Answer» Construct index number of industrial production from the following data: $\begin{matrix} Industry & Unit & Base year & Current Year & Weight E l e c t r i c a l & Mill, Nos. & 5 & 23 & 20 Mining & Th. Tonnes & 552 & 109 & 17 Manufacturing & Mill. Nos. & 223 & 999 & 63 \end{matrix}$

Discussion

518.	The consumer price index for June, 2005 was 125. The food index was 120 and that of other items 135. What is the percentage of the total weight given to food?
Answer» The consumer price index for June, 2005 was 125. The food index was 120 and that of other items 135. What is the percentage of the total weight given to food?

Discussion

519.	Calculate Lower Quartile and Upper Quartile from the following data : X0−1010−2020−3030−4040−5050−6060−7070−80f1520252412317152
Answer» Calculate Lower Quartile and Upper Quartile from the following data : $\begin{matrix} X & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 & 60 - 70 & 70 - 80 f & 15 & 20 & 25 & 24 & 12 & 31 & 71 & 52 \end{matrix}$

519.

Calculate Lower Quartile and Upper Quartile from the following data : X0−1010−2020−3030−4040−5050−6060−7070−80f1520252412317152

Answer»

Calculate Lower Quartile and Upper Quartile from the following data :

$\begin{matrix} X & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 & 60 - 70 & 70 - 80 f & 15 & 20 & 25 & 24 & 12 & 31 & 71 & 52 \end{matrix}$

Discussion

520.	Calculate mode from the given data Size303540455055Frequency59141064
Answer» Calculate mode from the given data $\begin{matrix} Size & 30 & 35 & 40 & 45 & 50 & 55 Frequency & 5 & 9 & 14 & 10 & 6 & 4 \end{matrix}$

520.

Calculate mode from the given data Size303540455055Frequency59141064

Answer»

Calculate mode from the given data

$\begin{matrix} Size & 30 & 35 & 40 & 45 & 50 & 55 Frequency & 5 & 9 & 14 & 10 & 6 & 4 \end{matrix}$

Discussion

521.	Use the line of best fit to predict the approximate value of y when x is equal to 10.
Answer» Use the line of best fit to predict the approximate value of y when x is equal to 10.

521.

Use the line of best fit to predict the approximate value of y when x is equal to 10.

Answer»

Use the line of best fit to predict the approximate value of y when x is equal to 10.

Discussion

522.	Find the median for the following frequency distribution.Age in yearsNumber of people1531681710181019520417
Answer» Find the median for the following frequency distribution. $\begin{matrix} A g e i n y e a r s & N u m b e r o f p e o p l e 15 & 3 16 & 8 17 & 10 18 & 10 19 & 5 20 & 4 \end{matrix}$ 17

Discussion

523.	Pocket money of 8 students in Rupees (Rs) is given below: 6,12,18,24,30,36,42, 48 Calculate the mean.
Answer» Pocket money of 8 students in Rupees (Rs) is given below: 6,12,18,24,30,36,42, 48 Calculate the mean.

523.

Pocket money of 8 students in Rupees (Rs) is given below: 6,12,18,24,30,36,42, 48 Calculate the mean.

Answer»

Pocket money of 8 students in Rupees (Rs) is given below:

6,12,18,24,30,36,42, 48

Calculate the mean.

Discussion

524.

Calculate standard deviation and the coefficient of standard deviation, given the following data: Income (₹) 5 10 15 20 25 30 35 40 Number of Workers 26 29 40 35 26 18 14 12

Answer» Calculate standard deviation and the coefficient of standard deviation, given the following data:

Income (₹)	5	10	15	20	25	30	35	40
Number of Workers	26	29	40	35	26	18	14	12

Discussion

525.	Fisher’s method of computing index numbers is based on______.
Answer» Fisher’s method of computing index numbers is based on______.

Discussion

526.	Calculate the median from the following data: Marks (less than)510152025303540No of Students4102030557795100
Answer» Calculate the median from the following data: $\begin{matrix} Marks (less than) & 5 & 10 & 15 & 20 & 25 & 30 & 35 & 40 No of Students & 4 & 10 & 20 & 30 & 55 & 77 & 95 & 100 \end{matrix}$

526.

Calculate the median from the following data: Marks (less than)510152025303540No of Students4102030557795100

Answer»

Calculate the median from the following data:

$\begin{matrix} Marks (less than) & 5 & 10 & 15 & 20 & 25 & 30 & 35 & 40 No of Students & 4 & 10 & 20 & 30 & 55 & 77 & 95 & 100 \end{matrix}$

Discussion

527.	Discuss how there is greater give and take among disciplines today.
Answer» Discuss how there is greater give and take among disciplines today.

Discussion

528.	Find out range and coefficient of range of the following series Size5−1010−1515−2020−2525−30Frequency49153040
Answer» Find out range and coefficient of range of the following series $\begin{matrix} Size & 5 - 10 & 10 - 15 & 15 - 20 & 20 - 25 & 25 - 30 Frequency & 4 & 9 & 15 & 30 & 40 \end{matrix}$

528.

Find out range and coefficient of range of the following series Size5−1010−1515−2020−2525−30Frequency49153040

Answer»

Find out range and coefficient of range of the following series

$\begin{matrix} Size & 5 - 10 & 10 - 15 & 15 - 20 & 20 - 25 & 25 - 30 Frequency & 4 & 9 & 15 & 30 & 40 \end{matrix}$

Discussion

529.	ABC School has allotted unique token IDs from (1 to 600) to all the parents for facilitating a lucky draw on the day of their Annual day function. The winner would receive a special prize. Write a program using Python that helps to automate the task.(Hint: use random module)
Answer» ABC School has allotted unique token IDs from (1 to 600) to all the parents for facilitating a lucky draw on the day of their Annual day function. The winner would receive a special prize. Write a program using Python that helps to automate the task.(Hint: use random module)

Discussion

530.	The total sales (in lakhs) of 50 supermarkets for a week tabulated below. Find the standard deviation of the sales. Sales (in lakhs)0−22−44−66−88−1010−12No. of Supermarkets12118784
Answer» The total sales (in lakhs) of 50 supermarkets for a week tabulated below. Find the standard deviation of the sales. $\begin{matrix} Sales (in lakhs) & 0 - 2 & 2 - 4 & 4 - 6 & 6 - 8 & 8 - 10 & 10 - 12 No. of Supermarkets & 12 & 11 & 8 & 7 & 8 & 4 \end{matrix}$

Discussion

531.	A ___ is a curve which is plotted by joining the mid-points of all top edges of a histogram by freehand smoothed curves and not by straight lines.
Answer» A ___ is a curve which is plotted by joining the mid-points of all top edges of a histogram by freehand smoothed curves and not by straight lines.

Discussion

532.

Present the following data on the production of food grains in the form of a sub-divided bar diagram: Year Wheart Rice Gram Total 2016 2017 30 45 20 30 10 15 60 90

Answer» Present the following data on the production of food grains in the form of a sub-divided bar diagram:

Year	Wheart	Rice	Gram	Total
2016 2017	30 45	20 30	10 15	60 90

Discussion

533.	What advantages do tuples have over lists?
Answer» What advantages do tuples have over lists?

Discussion

534.	___ is a circular chart which is divided into sections and each section represents a percentage of the total.
Answer» ___ is a circular chart which is divided into sections and each section represents a percentage of the total.

Discussion

535.	Following is some information regarding a town’s expenditure: Expenses on itemsFood 43%Fuel 7%Clothing 27%Rent 13%Misc 10%Price (in Rs.)in 201417063411012950347Price (in Rs.)in 19821004122334249200 What is the cost of living index of the year 2014 as compared with the year 1982?
Answer» Following is some information regarding a town’s expenditure: $\begin{matrix} Expenses on items & Food 43 % & Fuel 7 % & Clothing 27 % & Rent 13 % & Misc 10 % Price (in Rs.)in 2014 & 1706 & 341 & 1012 & 950 & 347 Price (in Rs.)in 1982 & 1004 & 122 & 334 & 249 & 200 \end{matrix}$ What is the cost of living index of the year 2014 as compared with the year 1982?

535.

Following is some information regarding a town’s expenditure: Expenses on itemsFood 43%Fuel 7%Clothing 27%Rent 13%Misc 10%Price (in Rs.)in 201417063411012950347Price (in Rs.)in 19821004122334249200 What is the cost of living index of the year 2014 as compared with the year 1982?

Answer»

Following is some information regarding a town’s expenditure:

$\begin{matrix} Expenses on items & Food 43 % & Fuel 7 % & Clothing 27 % & Rent 13 % & Misc 10 % Price (in Rs.)in 2014 & 1706 & 341 & 1012 & 950 & 347 Price (in Rs.)in 1982 & 1004 & 122 & 334 & 249 & 200 \end{matrix}$

What is the cost of living index of the year 2014 as compared with the year 1982?

Discussion

536.

Find the Consumer Price Index from the following data. Using(i) Aggregative Expenditure Method, and(ii) Family Budget Method.Is there any difference between the two results? Commodity Quantity Consumed in the year 2004 Unit Price in 2004 (₹) Price in 2017 (₹) Rice Wheat Bajra Arhar Desi Ghee Sugar 6 8 1 2 20 1 Quintal Quintal Quintal Quintal kg Quintal 100 80 70 120 12 160 120 90 70 115 15 170

Answer» Find the Consumer Price Index from the following data. Using

(i) Aggregative Expenditure Method, and

(ii) Family Budget Method.

Is there any difference between the two results?

Commodity	Quantity Consumed in the year 2004	Unit	Price in 2004 (₹)	Price in 2017 (₹)
Rice Wheat Bajra Arhar Desi Ghee Sugar	6 8 1 2 20 1	Quintal Quintal Quintal Quintal kg Quintal	100 80 70 120 12 160	120 90 70 115 15 170

Discussion

537.	Explain any 3 merits and demerits each of arithmetic mean.
Answer» Explain any 3 merits and demerits each of arithmetic mean.

Discussion

538.	19 find the number of ways in which a person can buy six chocolates, if there are three types of chocolates available .(chocolates of same type are identical ).
Answer» 19 find the number of ways in which a person can buy six chocolates, if there are three types of chocolates available .(chocolates of same type are identical ).

Discussion

539.

From the following information, determine coefficient of correlation between X and Y series: X-Series Y-Series Number of Items 15 15 Mean 25 18 SD 3.01 3.03 Sum of Squares of deviation from Mean 136 138 Sum of product of deviation of X and Y from their respective Means 122

Answer» From the following information, determine coefficient of correlation between X and Y series:

	X-Series	Y-Series
Number of Items	15	15
Mean	25	18
SD	3.01	3.03
Sum of Squares of deviation from Mean	136	138
Sum of product of deviation of X and Y from their respective Means	122

Discussion

540.	Which bar diagram is known as simple bar diagram ?
Answer» Which bar diagram is known as simple bar diagram ?

Discussion

541.	Find the mode of the following data ClassFrequency0−1007100−20011200−30015300−4009400−5008
Answer» Find the mode of the following data $\begin{matrix} C l a s s & F r e q u e n c y 0 - 100 & 7 100 - 200 & 11 200 - 300 & 15 300 - 400 & 9 400 - 500 & 8 \end{matrix}$

Discussion

542.	Agriculture sector appears to be adversely affected by the reform process. Why?
Answer» Agriculture sector appears to be adversely affected by the reform process. Why?

Discussion

543.	What is meant by double ordinate?
Answer» What is meant by double ordinate?

Discussion

544.	Draw a production possibility curve. What does a point below this curve indicate?
Answer» Draw a production possibility curve. What does a point below this curve indicate?

Discussion

545.

The lengths of 40 leaves of a plant are measured correct to the nearest millimeter, and the data obtained is represented in the following table: Length (in mm)Number of leaves fi118−1263127−1355136−1449145−15312154−1625163−1714172−1802Find the median length of the leaves.

Answer»

The lengths of 40 leaves of a plant are measured correct to the nearest millimeter, and the data obtained is represented in the following table:

$\begin{matrix} L e n g t h (i n m m) & N u m b e r o f l e a v e s f_{i} 118 - 126 & 3 127 - 135 & 5 136 - 144 & 9 145 - 153 & 12 154 - 162 & 5 163 - 171 & 4 172 - 180 & 2 \end{matrix}$

Find the median length of the leaves.

Discussion

546.	If the y value increases as the x value increases, the correlation is called ___ correlation.
Answer» If the y value increases as the x value increases, the correlation is called ___ correlation.

Discussion

547.

For the years 2012-13 and 2013-14, value of gross domestic product at factor cost by the industry of origin is given in the following table. Present the information in the form of Pie Diagram showing differences in the percentage contribution of different sectors between the said years. Sector Year 2012-13 2013-14 Primary Secondary Tertiary 17 57 26 16.7 26 57.3 Total 100 100

Answer» For the years 2012-13 and 2013-14, value of gross domestic product at factor cost by the industry of origin is given in the following table. Present the information in the form of Pie Diagram showing differences in the percentage contribution of different sectors between the said years.

Sector	Year
Sector	2012-13	2013-14
Primary Secondary Tertiary	17 57 26	16.7 26 57.3
Total	100	100

Discussion

548.

Convert the following data in a simple frequency distribution: 5 students obtained less than 3 marks 12 students obtained less than 6 marks 25 students obtained less than 9 marks 33 students obtained less than 12 marks

Answer» Convert the following data in a simple frequency distribution:

5 students obtained less than 3 marks

12 students obtained less than 6 marks

25 students obtained less than 9 marks

33 students obtained less than 12 marks

Discussion

549.	Calculate range and coefficient of range from the following data:4, 7, 8, 46, 53, 77, 8, 1, 5, 13
Answer» Calculate range and coefficient of range from the following data: 4, 7, 8, 46, 53, 77, 8, 1, 5, 13

Discussion

550.

Find out median, with the help of the following data: Price Level 10−20 20−30 30−40 40−50 50−60 60−70 Number of Commodity 2 5 8 4 6 3

Answer» Find out median, with the help of the following data:

Price Level	10−20	20−30	30−40	40−50	50−60	60−70
Number of Commodity	2	5	8	4	6	3

Discussion

Explore topic-wise InterviewSolutions in .

Find the mean of the step deviations: ClassFrequencyClass markdiui=dihinterval(fi)(xi)(xi−a)0−1004050−200−2100−20039150−100−1200−3003425000300−400303501001400−500454502002

How does the understanding of culture in social science differ from the everyday use of the word `culture’?

Question 11Size of agricultural holdings in a survey of 200 families is given in the following tableSize of agricultural holdings(in hec)Number of families0−5 105−10 1510−15 3015−20 8020−25 4025−30 2030−35 5Compute median and size of the holdings.

The mean of the series x1,x2,x3,.......,xn is ¯x. If x2 is replaced by λ, then the new mean is

3. What is log function in detail

Identify the type of classification of the below table. Distance of cities from Bangalore (km)No. of companies1040202030304010

Locate median of the following distribution : Variable (X)10111213141516Frequency (f)815252012105

Calculate mode of the following distribution: Marks 10−19 20−29 30−39 40−49 50−59 60−69 70−79 80−89 90−99 Number of Students 29 87 181 247 263 133 40 9 2

Which values of a class are known as limits?

Which of the following statement(s) is/are correctly stated? Codes :

In a Fancy-dress competition, two judges accorded the following ranks to eight participants: Judge X 8 7 6 3 2 1 5 4 Judge Y 7 5 4 1 3 2 6 8 Calculate coefficient of rank correlation.

Of the two sets of income distribution of five and seven persons respectively, as given below calculate standard deviation: (i) Income (₹) 4,000 4,200 4,400 4,600 4,800 (ii) Income (₹) 3,000 4,000 4,200 4,400 4,600 4,800 5,800

Today is Rahul's birthday and he plans to host a party at a high-end restaurant. He realises that his budget is Rs 2000 and he picks a cheaper restaurant. This is a case of ___.

The ratings of 6 laptops in two websites A and B are given below. Find the rank coefficient for the ratings of the two websites. LaptopsABL178L28.59.5L39.58L488L58.56.5L67.57.5

Calculate the standard deviation of the following 38, 40, 34, 31, 28, 26, 34

Non-sampling errors can be minimised by taking large samples (true/ false).

Construct index number of industrial production from the following data: IndustryUnitBase yearCurrent YearWeightElectricalMill, Nos.52320Mining Th. Tonnes55210917ManufacturingMill. Nos.22399963

The consumer price index for June, 2005 was 125. The food index was 120 and that of other items 135. What is the percentage of the total weight given to food?

Calculate Lower Quartile and Upper Quartile from the following data : X0−1010−2020−3030−4040−5050−6060−7070−80f1520252412317152

Calculate mode from the given data Size303540455055Frequency59141064

Use the line of best fit to predict the approximate value of y when x is equal to 10.

Find the median for the following frequency distribution.Age in yearsNumber of people1531681710181019520417

Pocket money of 8 students in Rupees (Rs) is given below: 6,12,18,24,30,36,42, 48 Calculate the mean.

Calculate standard deviation and the coefficient of standard deviation, given the following data: Income (₹) 5 10 15 20 25 30 35 40 Number of Workers 26 29 40 35 26 18 14 12

Fisher’s method of computing index numbers is based on______.

Calculate the median from the following data: Marks (less than)510152025303540No of Students4102030557795100

Discuss how there is greater give and take among disciplines today.

Find out range and coefficient of range of the following series Size5−1010−1515−2020−2525−30Frequency49153040

ABC School has allotted unique token IDs from (1 to 600) to all the parents for facilitating a lucky draw on the day of their Annual day function. The winner would receive a special prize. Write a program using Python that helps to automate the task.(Hint: use random module)

The total sales (in lakhs) of 50 supermarkets for a week tabulated below. Find the standard deviation of the sales. Sales (in lakhs)0−22−44−66−88−1010−12No. of Supermarkets12118784

A ___ is a curve which is plotted by joining the mid-points of all top edges of a histogram by freehand smoothed curves and not by straight lines.

Present the following data on the production of food grains in the form of a sub-divided bar diagram: Year Wheart Rice Gram Total 2016 2017 30 45 20 30 10 15 60 90

What advantages do tuples have over lists?

___ is a circular chart which is divided into sections and each section represents a percentage of the total.

Following is some information regarding a town’s expenditure: Expenses on itemsFood 43%Fuel 7%Clothing 27%Rent 13%Misc 10%Price (in Rs.)in 201417063411012950347Price (in Rs.)in 19821004122334249200 What is the cost of living index of the year 2014 as compared with the year 1982?

Explain any 3 merits and demerits each of arithmetic mean.

19 find the number of ways in which a person can buy six chocolates, if there are three types of chocolates available .(chocolates of same type are identical ).

From the following information, determine coefficient of correlation between X and Y series: X-Series Y-Series Number of Items 15 15 Mean 25 18 SD 3.01 3.03 Sum of Squares of deviation from Mean 136 138 Sum of product of deviation of X and Y from their respective Means 122

Which bar diagram is known as simple bar diagram ?

Find the mode of the following data ClassFrequency0−1007100−20011200−30015300−4009400−5008

Agriculture sector appears to be adversely affected by the reform process. Why?

What is meant by double ordinate?

Draw a production possibility curve. What does a point below this curve indicate?

The lengths of 40 leaves of a plant are measured correct to the nearest millimeter, and the data obtained is represented in the following table: Length (in mm)Number of leaves fi118−1263127−1355136−1449145−15312154−1625163−1714172−1802Find the median length of the leaves.

If the y value increases as the x value increases, the correlation is called ___ correlation.

Convert the following data in a simple frequency distribution: 5 students obtained less than 3 marks 12 students obtained less than 6 marks 25 students obtained less than 9 marks 33 students obtained less than 12 marks

Calculate range and coefficient of range from the following data:4, 7, 8, 46, 53, 77, 8, 1, 5, 13

Find out median, with the help of the following data: Price Level 10−20 20−30 30−40 40−50 50−60 60−70 Number of Commodity 2 5 8 4 6 3