1173 + Interview Questions in Statistics Page 24 InterviewSolution

1151.	Calculate the coefficient of correlation of the following data by Spearman's rank correlation method: X192412231916Y92220142218
Answer» Calculate the coefficient of correlation of the following data by Spearman's rank correlation method: $\begin{matrix} X & 19 & 24 & 12 & 23 & 19 & 16 Y & 9 & 22 & 20 & 14 & 22 & 18 \end{matrix}$

1151.

Calculate the coefficient of correlation of the following data by Spearman's rank correlation method: X192412231916Y92220142218

Answer»

Calculate the coefficient of correlation of the following data by Spearman's rank correlation method:

$\begin{matrix} X & 19 & 24 & 12 & 23 & 19 & 16 Y & 9 & 22 & 20 & 14 & 22 & 18 \end{matrix}$

1152.	Show diagrammatically the conditions for consumer's equilibrium, in Hicksian analysis of demand.
Answer» Show diagrammatically the conditions for consumer's equilibrium, in Hicksian analysis of demand.

Discussion

1153.	Find out mean deviation and coefficient of mean deviation, using arithmetic mean from the following data: Profit (Rs)0−1010−2020−3030−4040−50Shops (Number)510152025
Answer» Find out mean deviation and coefficient of mean deviation, using arithmetic mean from the following data: $\begin{matrix} Profit (Rs) & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 Shops (Number) & 5 & 10 & 15 & 20 & 25 \end{matrix}$

1153.

Find out mean deviation and coefficient of mean deviation, using arithmetic mean from the following data: Profit (Rs)0−1010−2020−3030−4040−50Shops (Number)510152025

Answer»

Find out mean deviation and coefficient of mean deviation, using arithmetic mean from the following data:

$\begin{matrix} Profit (Rs) & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 Shops (Number) & 5 & 10 & 15 & 20 & 25 \end{matrix}$

Discussion

1154.	Which of the following is same as the median?
Answer» Which of the following is same as the median?

Discussion

1155.	From the following data construct fisher's ideal index: ItemsBaseBase year quantityCurrent year priceCurrent year quantityA550760B615810C881112D7201015
Answer» From the following data construct fisher's ideal index: $\begin{matrix} Items & Base & Base year quantity & Current year price & Current year quantity A & 5 & 50 & 7 & 60 B & 6 & 15 & 8 & 10 C & 8 & 8 & 11 & 12 D & 7 & 20 & 10 & 15 \end{matrix}$

1155.

From the following data construct fisher's ideal index: ItemsBaseBase year quantityCurrent year priceCurrent year quantityA550760B615810C881112D7201015

Answer»

From the following data construct fisher's ideal index:

$\begin{matrix} Items & Base & Base year quantity & Current year price & Current year quantity A & 5 & 50 & 7 & 60 B & 6 & 15 & 8 & 10 C & 8 & 8 & 11 & 12 D & 7 & 20 & 10 & 15 \end{matrix}$

Discussion

1156.	Problem of choice arises when there are _____ .
Answer» Problem of choice arises when there are _____ .

Discussion

1157.	Calculate the mean deviation about the median for the following data: Height (in cm)95−105105−115115−125125−135135−145145−155Number of boys91325301310
Answer» Calculate the mean deviation about the median for the following data: $\begin{matrix} Height (in cm) & 95 - 105 & 105 - 115 & 115 - 125 & 125 - 135 & 135 - 145 & 145 - 155 Number of boys & 9 & 13 & 25 & 30 & 13 & 10 \end{matrix}$

1157.

Calculate the mean deviation about the median for the following data: Height (in cm)95−105105−115115−125125−135135−145145−155Number of boys91325301310

Answer»

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

$\begin{matrix} Height (in cm) & 95 - 105 & 105 - 115 & 115 - 125 & 125 - 135 & 135 - 145 & 145 - 155 Number of boys & 9 & 13 & 25 & 30 & 13 & 10 \end{matrix}$

Discussion

1158.	Find the mode of the following data. xifi10101415187219259 [1 MARK]
Answer» Find the mode of the following data. $\begin{matrix} x_{i} & f_{i} 10 & 10 14 & 15 18 & 7 21 & 9 25 & 9 \end{matrix}$ [1 MARK]

Discussion

1159.	A ___ is a line of information that is plugged at the bottom of a table to highlight where the data was acquired from.
Answer» A ___ is a line of information that is plugged at the bottom of a table to highlight where the data was acquired from.

Discussion

1160.	Arjun and Karna had an archery competition where they had to shoot a target board with 7 concurrent circles dividing the board into 8 concurrent circular strips. The score for each successive outer strip decreases by unity with the centermost circle having a score of 8. Dronacharya had difficulty in deciding who the winner was after the scores were recorded. Calculate the mean deviation about the score of innermost circle so as to decide who the winner is, assuming the winner is less deviated from the bulls eye. Points87654321Arjun(fi)571423111043karana(fi)58112414853
Answer» Arjun and Karna had an archery competition where they had to shoot a target board with 7 concurrent circles dividing the board into 8 concurrent circular strips. The score for each successive outer strip decreases by unity with the centermost circle having a score of 8. Dronacharya had difficulty in deciding who the winner was after the scores were recorded. Calculate the mean deviation about the score of innermost circle so as to decide who the winner is, assuming the winner is less deviated from the bulls eye. $\begin{matrix} P o i n t s & 8 & 7 & 6 & 5 & 4 & 3 & 2 & 1 A r j u n (f_{i}) & 5 & 7 & 14 & 23 & 11 & 10 & 4 & 3 k a r a n a (f_{i}) & 5 & 8 & 11 & 24 & 14 & 8 & 5 & 3 \end{matrix}$

1160.

Arjun and Karna had an archery competition where they had to shoot a target board with 7 concurrent circles dividing the board into 8 concurrent circular strips. The score for each successive outer strip decreases by unity with the centermost circle having a score of 8. Dronacharya had difficulty in deciding who the winner was after the scores were recorded. Calculate the mean deviation about the score of innermost circle so as to decide who the winner is, assuming the winner is less deviated from the bulls eye. Points87654321Arjun(fi)571423111043karana(fi)58112414853

Answer»

Arjun and Karna had an archery competition where they had to shoot a target board with 7 concurrent circles dividing the board into 8 concurrent circular strips. The score for each successive outer strip decreases by unity with the centermost circle having a score of 8. Dronacharya had difficulty in deciding who the winner was after the scores were recorded. Calculate the mean deviation about the score of innermost circle so as to decide who the winner is, assuming the winner is less deviated from the bulls eye.

$\begin{matrix} P o i n t s & 8 & 7 & 6 & 5 & 4 & 3 & 2 & 1 A r j u n (f_{i}) & 5 & 7 & 14 & 23 & 11 & 10 & 4 & 3 k a r a n a (f_{i}) & 5 & 8 & 11 & 24 & 14 & 8 & 5 & 3 \end{matrix}$

Discussion

1161.	Width of bars in a bar diagram need not be equal. (True/False)
Answer» Width of bars in a bar diagram need not be equal. (True/False)

Discussion

1162.	Arrange the following raw data in an array and determine the range: 19, 47, 40, 29, 8, 50, 13, 59, 36, 24
Answer» Arrange the following raw data in an array and determine the range: 19, 47, 40, 29, 8, 50, 13, 59, 36, 24

1162.

Arrange the following raw data in an array and determine the range: 19, 47, 40, 29, 8, 50, 13, 59, 36, 24

Answer»

Arrange the following raw data in an array and determine the range:

19, 47, 40, 29, 8, 50, 13, 59, 36, 24

Discussion

1163.	The monthly per capita expenditure incurred by workers for an industrial centre during 1980 and 2005 on the following items are given below. The weights of these items are 75, 10, 5, 6 and 4 respectively. Prepare a weighted index number for cost of living for 2005 with 1980 as the base. ItemsPrice in 1980Price in 2005Food100200Clothing2025Fuel and Lighting1520House rent3040Miscellaneous3565
Answer» The monthly per capita expenditure incurred by workers for an industrial centre during 1980 and 2005 on the following items are given below. The weights of these items are 75, 10, 5, 6 and 4 respectively. Prepare a weighted index number for cost of living for 2005 with 1980 as the base. $\begin{matrix} Items & Price in 1980 & Price in 2005 Food & 100 & 200 Clothing & 20 & 25 Fuel and Lighting & 15 & 20 House rent & 30 & 40 Miscellaneous & 35 & 65 \end{matrix}$

1163.

The monthly per capita expenditure incurred by workers for an industrial centre during 1980 and 2005 on the following items are given below. The weights of these items are 75, 10, 5, 6 and 4 respectively. Prepare a weighted index number for cost of living for 2005 with 1980 as the base. ItemsPrice in 1980Price in 2005Food100200Clothing2025Fuel and Lighting1520House rent3040Miscellaneous3565

Answer»

The monthly per capita expenditure incurred by workers for an industrial centre during 1980 and 2005 on the following items are given below. The weights of these items are 75, 10, 5, 6 and 4 respectively. Prepare a weighted index number for cost of living for 2005 with 1980 as the base.

$\begin{matrix} Items & Price in 1980 & Price in 2005 Food & 100 & 200 Clothing & 20 & 25 Fuel and Lighting & 15 & 20 House rent & 30 & 40 Miscellaneous & 35 & 65 \end{matrix}$

Discussion

1164.	Calculate the coefficient of variation of the given continuous series.more than010203040506070Cumulative Frequency100907550201050
Answer» Calculate the coefficient of variation of the given continuous series. $\begin{matrix} more than & 0 & 10 & 20 & 30 & 40 & 50 & 60 & 70 Cumulative Frequency & 100 & 90 & 75 & 50 & 20 & 10 & 5 & 0 \end{matrix}$

Discussion

1165.	Rectify the following errors. (a) Salary paid Rs. 5,000 was debited to the employee's personal account. (b) Rent paid Rs. 4,000 was posted to landlord's personal account (c) Goods withdrawn by the proprietor for personal use Rs. 1,000 were debited to sundry expenses account. (d) Cash received from Kohli Rs. 2,000 was posted to Kapur's account. (e) Cash paid to Babu Rs. 1,500 was posted to Sabu's account.
Answer» Rectify the following errors. (a) Salary paid Rs. 5,000 was debited to the employee's personal account. (b) Rent paid Rs. 4,000 was posted to landlord's personal account (c) Goods withdrawn by the proprietor for personal use Rs. 1,000 were debited to sundry expenses account. (d) Cash received from Kohli Rs. 2,000 was posted to Kapur's account. (e) Cash paid to Babu Rs. 1,500 was posted to Sabu's account.

1165.

Rectify the following errors. (a) Salary paid Rs. 5,000 was debited to the employee's personal account. (b) Rent paid Rs. 4,000 was posted to landlord's personal account (c) Goods withdrawn by the proprietor for personal use Rs. 1,000 were debited to sundry expenses account. (d) Cash received from Kohli Rs. 2,000 was posted to Kapur's account. (e) Cash paid to Babu Rs. 1,500 was posted to Sabu's account.

Answer»

Rectify the following errors.

(a) Salary paid Rs. 5,000 was debited to the employee's personal account.

(b) Rent paid Rs. 4,000 was posted to landlord's personal account

(c) Goods withdrawn by the proprietor for personal use Rs. 1,000 were debited to sundry expenses account.

(d) Cash received from Kohli Rs. 2,000 was posted to Kapur's account.

(e) Cash paid to Babu Rs. 1,500 was posted to Sabu's account.

Discussion

1166.	One of the disadvantages of the Wholesale Price Index in India is that:
Answer» One of the disadvantages of the Wholesale Price Index in India is that:

Discussion

1167.	The lifetimes of 100 light bulbs are tabulated below. Find the median lifetime. Lifetime (in hours)Frequency0−20720−401340−602060−801880−10016100−12010120−1407140−1609
Answer» The lifetimes of 100 light bulbs are tabulated below. Find the median lifetime. $\begin{matrix} Lifetime (in hours) & Frequency 0 - 20 & 7 20 - 40 & 13 40 - 60 & 20 60 - 80 & 18 80 - 100 & 16 100 - 120 & 10 120 - 140 & 7 140 - 160 & 9 \end{matrix}$

Discussion

1168.	An index number which accounts for the relative importance of the items is known as (i) weighted index (ii) simple aggregative index (iii) simple average of relatives
Answer» An index number which accounts for the relative importance of the items is known as (i) weighted index (ii) simple aggregative index (iii) simple average of relatives

1168.

An index number which accounts for the relative importance of the items is known as (i) weighted index (ii) simple aggregative index (iii) simple average of relatives

Answer»

An index number which accounts for the relative importance of the items is known as

(i) weighted index

(ii) simple aggregative index

(iii) simple average of relatives

Discussion

1169.	Variables which change in exact value are known as ___ variables.
Answer» Variables which change in exact value are known as ___ variables.

Discussion

1170.	State whether the following statements are True or False. (i) There are many sources of data. (True/False) (ii) Telephone survey is the most suitable method of collecting data, when the population is literate and spread over a large area. (True/False) (iii) Data collected by investigator is called the secondary data. (True/False) (iv) There is a certain bias involved in the non-random selection of samples. (True/False) (v) Non-sampling errors can be minimised by taking large samples. (True/False)
Answer» State whether the following statements are True or False. (i) There are many sources of data. (True/False) (ii) Telephone survey is the most suitable method of collecting data, when the population is literate and spread over a large area. (True/False) (iii) Data collected by investigator is called the secondary data. (True/False) (iv) There is a certain bias involved in the non-random selection of samples. (True/False) (v) Non-sampling errors can be minimised by taking large samples. (True/False)

1170.

State whether the following statements are True or False. (i) There are many sources of data. (True/False) (ii) Telephone survey is the most suitable method of collecting data, when the population is literate and spread over a large area. (True/False) (iii) Data collected by investigator is called the secondary data. (True/False) (iv) There is a certain bias involved in the non-random selection of samples. (True/False) (v) Non-sampling errors can be minimised by taking large samples. (True/False)

Answer»

State whether the following statements are True or False.

(i) There are many sources of data. (True/False)

(ii) Telephone survey is the most suitable method of collecting data, when the population is literate and spread over a large area. (True/False)

(iii) Data collected by investigator is called the secondary data. (True/False)

(iv) There is a certain bias involved in the non-random selection of samples. (True/False)

(v) Non-sampling errors can be minimised by taking large samples. (True/False)

Discussion

1171.	Calculate the coefficient of the following data by Spearman's rank correlation method. X192412231916Y92220142218
Answer» Calculate the coefficient of the following data by Spearman's rank correlation method. $\begin{matrix} X & 19 & 24 & 12 & 23 & 19 & 16 Y & 9 & 22 & 20 & 14 & 22 & 18 \end{matrix}$

1171.

Calculate the coefficient of the following data by Spearman's rank correlation method. X192412231916Y92220142218

Answer»

Calculate the coefficient of the following data by Spearman's rank correlation method.

$\begin{matrix} X & 19 & 24 & 12 & 23 & 19 & 16 Y & 9 & 22 & 20 & 14 & 22 & 18 \end{matrix}$

Discussion

1172.	What does a consumer price index for industrial workers measure?
Answer» What does a consumer price index for industrial workers measure?

Discussion

1173.	Explain any 2 merits and demerits each of mean deviation.
Answer» Explain any 2 merits and demerits each of mean deviation.

Discussion

Explore topic-wise InterviewSolutions in .

Calculate the coefficient of correlation of the following data by Spearman's rank correlation method: X192412231916Y92220142218

Show diagrammatically the conditions for consumer's equilibrium, in Hicksian analysis of demand.

Find out mean deviation and coefficient of mean deviation, using arithmetic mean from the following data: Profit (Rs)0−1010−2020−3030−4040−50Shops (Number)510152025

Which of the following is same as the median?

From the following data construct fisher's ideal index: ItemsBaseBase year quantityCurrent year priceCurrent year quantityA550760B615810C881112D7201015

Problem of choice arises when there are _____ .

Calculate the mean deviation about the median for the following data: Height (in cm)95−105105−115115−125125−135135−145145−155Number of boys91325301310

Find the mode of the following data. xifi10101415187219259 [1 MARK]

A ___ is a line of information that is plugged at the bottom of a table to highlight where the data was acquired from.

Width of bars in a bar diagram need not be equal. (True/False)

Arrange the following raw data in an array and determine the range: 19, 47, 40, 29, 8, 50, 13, 59, 36, 24

Calculate the coefficient of variation of the given continuous series.more than010203040506070Cumulative Frequency100907550201050

One of the disadvantages of the Wholesale Price Index in India is that:

The lifetimes of 100 light bulbs are tabulated below. Find the median lifetime. Lifetime (in hours)Frequency0−20720−401340−602060−801880−10016100−12010120−1407140−1609

An index number which accounts for the relative importance of the items is known as (i) weighted index (ii) simple aggregative index (iii) simple average of relatives

Variables which change in exact value are known as ___ variables.

Calculate the coefficient of the following data by Spearman's rank correlation method. X192412231916Y92220142218

What does a consumer price index for industrial workers measure?

Explain any 2 merits and demerits each of mean deviation.