Question 1

The mean or average used to measure central tendency is called

Accepted Answer

A) sample mean 
B) arithmetic mean 
C) negative mean 
D) population mean 
A) sample mean 
B) arithmetic mean 
C) negative mean 
D) population mean B

Question 2

The mean weight of 150 students in a class is 60 Kg. The mean weight of Boy students is 70 Kg and that of a girl students is 55 kg. Find the number of Boys and Girls in the class.

Accepted Answer

A) 50 and 100 
B) 100 and 50 
C) 150 and 200 
D) 200 and 150 
A) 50 and 100 
B) 100 and 50 
C) 150 and 200 
D) 200 and 150 A

Question 3

The variate values which divide a series into ten equal parts are called:

Accepted Answer

A) Quartiles 
B) Deciles 
C) Percentiles 
D) None of these 
A) Quartiles 
B) Deciles 
C) Percentiles 
D) None of these B

Question 4

In the quartiles, the central tendency median to be measured must lie in

Accepted Answer

A) first quartile 
B) second quartile 
C) third quartile 
D) four quartile 
A) first quartile 
B) second quartile 
C) third quartile 
D) four quartile

Question 5

The marks obtained by 9 students in a test are 25, 20, 15, 45, 18, 7, 10, 38 and 12. Find the median.

Accepted Answer

A) 38 
B) 20 
C) 18 
D) 15 
A) 38 
B) 20 
C) 18 
D) 15

Question 6

A distribution consists of three components with total frequencies of 200, 250 and 300 having means 25, 10 and 15 respectively. Find the mean of the combined distribution.

Accepted Answer

A) 17 
B) 16 
C) 15 
D) 20 
A) 17 
B) 16 
C) 15 
D) 20

Question 7

In a moderately asymmetrical distribution, the mode and mean are 32.1 and 35.4 respectively. Calculate the median.

Accepted Answer

A) 35 
B) 34.3 
C) 36 
D) 37 
A) 35 
B) 34.3 
C) 36 
D) 37

Question 8

The sum of squared deviations is minimum when taken from:

Accepted Answer

A) Mean 
B) Median 
C) Mode 
D) None of these 
A) Mean 
B) Median 
C) Mode 
D) None of these

Question 9

In a moderately asymmetrical distribution, the value of mean is 75 and the value of mode is 60:

Accepted Answer

A) 75 
B) 70 
C) 85 
D) 80 
A) 75 
B) 70 
C) 85 
D) 80

Question 10

In a moderately skewed distribution, the following equation indicates the relationship among mean, median and mode:

Accepted Answer

A) Mean = 2 Mode - 3 Median 
B) Mode = 3 Median - 2 Mean 
C) Median = 3 Mean - 2 Mode 
D) None of these 
A) Mean = 2 Mode - 3 Median 
B) Mode = 3 Median - 2 Mean 
C) Median = 3 Mean - 2 Mode 
D) None of these

Question 11

The sum of deviations of observations from their arithmetic mean:

Accepted Answer

A) Maximum 
B) Least 
C) Zero 
D) None of these 
A) Maximum 
B) Least 
C) Zero 
D) None of these

Question 12

The arithmetic mean is 12 and the number of observations are 20 then the sum of all the values is

Accepted Answer

A) 8 
B) 32 
C) 240 
D) 1.667 
A) 8 
B) 32 
C) 240 
D) 1.667

Question 13

In a moderately skewed distribution, the value of mean is 16 and that of mode is 25.

Accepted Answer

A) 20 
B) 19 
C) 21 
D) None of these 
A) 20 
B) 19 
C) 21 
D) None of these

Question 14

What is the median of 33, 86, 68, 32, 80, 48, 70?

Accepted Answer

A) 32 
B) 68 
C) 80 
D) 86 
A) 32 
B) 68 
C) 80 
D) 86

Question 15

For a symmetrical distribution, Q1 and Q3 are 20 and 60 respectively. The value of median will be:

Accepted Answer

A) 20 
B) 30 
C) 40 
D) 50 
A) 20 
B) 30 
C) 40 
D) 50

Question 16

Given Mean = 70.2 and mode = 70.5. Find the median using empirical relationship among them.

Accepted Answer

A) 120 
B) 150 
C) 180 
D) 300 
A) 120 
B) 150 
C) 180 
D) 300

Question 17

If the mean of percentages, rates and ratios is to be calculated then the central tendency measure which must be used in this situation is

Accepted Answer

A) weighted arithmetic mean 
B) paired arithmetic mean 
C) non-paired arithmetic mean 
D) square of arithmetic mean 
A) weighted arithmetic mean 
B) paired arithmetic mean 
C) non-paired arithmetic mean 
D) square of arithmetic mean

Question 18

The method used to compute average or central value of the collected data is considered as

Accepted Answer

A) measures of positive variation 
B) measures of central tendency 
C) measures of negative skewness 
D) measures of negative variation 
A) measures of positive variation 
B) measures of central tendency 
C) measures of negative skewness 
D) measures of negative variation

Question 19

In a moderately skewed distribution, the mode and median are 20 and 24 respectively. Calculate the value of mean.

Accepted Answer

A) 27 
B) 26 
C) 25 
D) 28 
A) 27 
B) 26 
C) 25 
D) 28

Question 20

The sum of absolute deviations is minimum when taken from:

Accepted Answer

A) Mean 
B) Median 
C) Mode 
D) None of these 
A) Mean 
B) Median 
C) Mode 
D) None of these

The mean or average used to measure central tendency is called

The mean weight of 150 students in a class is 60 Kg. The mean weight of Boy students is 70 Kg and that of a girl students is 55 kg. Find the number of Boys and Girls in the class.

The variate values which divide a series into ten equal parts are called:

In the quartiles, the central tendency median to be measured must lie in

The marks obtained by 9 students in a test are 25, 20, 15, 45, 18, 7, 10, 38 and 12. Find the median.

A distribution consists of three components with total frequencies of 200, 250 and 300 having means 25, 10 and 15 respectively. Find the mean of the combined distribution.

In a moderately asymmetrical distribution, the mode and mean are 32.1 and 35.4 respectively. Calculate the median.

The sum of squared deviations is minimum when taken from:

In a moderately asymmetrical distribution, the value of mean is 75 and the value of mode is 60:

In a moderately skewed distribution, the following equation indicates the relationship among mean, median and mode:

The sum of deviations of observations from their arithmetic mean:

The arithmetic mean is 12 and the number of observations are 20 then the sum of all the values is

In a moderately skewed distribution, the value of mean is 16 and that of mode is 25.

What is the median of 33, 86, 68, 32, 80, 48, 70?

For a symmetrical distribution, Q1 and Q3 are 20 and 60 respectively. The value of median will be:

Given Mean = 70.2 and mode = 70.5. Find the median using empirical relationship among them.

If the mean of percentages, rates and ratios is to be calculated then the central tendency measure which must be used in this situation is

The method used to compute average or central value of the collected data is considered as

In a moderately skewed distribution, the mode and median are 20 and 24 respectively. Calculate the value of mean.

The sum of absolute deviations is minimum when taken from:

Basic Concepts and Measures of Statistical Dispersion

Statistical Measures and Correlation Coefficients

Regression and Correlation Analysis

Index Numbers and Statistical Analysis

Index Numbers, Time Series and Data Collection Methods

Average and Range Calculations

Statistics and Data Analysis

Correlation Coefficient, Index Numbers, and Time Series

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Exam 1: Statistical Measures of Central Tendency and Dispersion

The mean or average used to measure central tendency is called

The mean weight of 150 students in a class is 60 Kg. The mean weight of Boy students is 70 Kg and that of a girl students is 55 kg. Find the number of Boys and Girls in the class.

The variate values which divide a series into ten equal parts are called:

In the quartiles, the central tendency median to be measured must lie in

The marks obtained by 9 students in a test are 25, 20, 15, 45, 18, 7, 10, 38 and 12. Find the median.

A distribution consists of three components with total frequencies of 200, 250 and 300 having means 25, 10 and 15 respectively. Find the mean of the combined distribution.

In a moderately asymmetrical distribution, the mode and mean are 32.1 and 35.4 respectively. Calculate the median.

The sum of squared deviations is minimum when taken from:

In a moderately asymmetrical distribution, the value of mean is 75 and the value of mode is 60:

In a moderately skewed distribution, the following equation indicates the relationship among mean, median and mode:

The sum of deviations of observations from their arithmetic mean:

The arithmetic mean is 12 and the number of observations are 20 then the sum of all the values is

In a moderately skewed distribution, the value of mean is 16 and that of mode is 25.

What is the median of 33, 86, 68, 32, 80, 48, 70?

For a symmetrical distribution, Q1 and Q3 are 20 and 60 respectively. The value of median will be:

Given Mean = 70.2 and mode = 70.5. Find the median using empirical relationship among them.

If the mean of percentages, rates and ratios is to be calculated then the central tendency measure which must be used in this situation is

The method used to compute average or central value of the collected data is considered as

In a moderately skewed distribution, the mode and median are 20 and 24 respectively. Calculate the value of mean.

The sum of absolute deviations is minimum when taken from:

Basic Concepts and Measures of Statistical Dispersion

Statistical Measures and Correlation Coefficients

Regression and Correlation Analysis

Index Numbers and Statistical Analysis

Index Numbers, Time Series and Data Collection Methods

Average and Range Calculations

Statistics and Data Analysis

Correlation Coefficient, Index Numbers, and Time Series

Filters