Question 1

Karl Pearson has expressed the relationship between Mean, Median, and Mode as:

Accepted Answer

A) Mode = Mean - 3 [Mean - Median] 
B) Mode = 3 Median - 2 Mean 
C) Median = Mode + 2/3 [Mean - Mode] 
D) All of the above 
A) Mode = Mean - 3 [Mean - Median] 
B) Mode = 3 Median - 2 Mean 
C) Median = Mode + 2/3 [Mean - Mode] 
D) All of the above D

Question 2

In a box, there are 8 red,7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

Accepted Answer

A) 1/3 
B) 3/4 
C) 7/19 
D) 9/21 
A) 1/3 
B) 3/4 
C) 7/19 
D) 9/21 A

Question 3

Statistics can be best considered as:

Accepted Answer

A) a science 
B) an art 
C) both science as well as art 
D) neither science nor art 
A) a science 
B) an art 
C) both science as well as art 
D) neither science nor art C

Question 4

Which average is affected most by extreme observation?

Accepted Answer

A) Mode 
B) Median 
C) Geometric mean 
D) None of the above 
A) Mode 
B) Median 
C) Geometric mean 
D) None of the above

Question 5

Those in which the occurence or non occurence of an event in any one trial affects the probability of other event in other trial. This is known as

Accepted Answer

A) dependent event 
B) independent event 
C) complementary event 
D) exhaustive event 
A) dependent event 
B) independent event 
C) complementary event 
D) exhaustive event

Question 6

The coefficient of correlation

Accepted Answer

A) has no limit 
B) should be less than 1 
C) should be more than 1 
D) varies between -1 and +1 
A) has no limit 
B) should be less than 1 
C) should be more than 1 
D) varies between -1 and +1

Question 7

Interquartile range is the difference between

Accepted Answer

A) the highest value and the lowest value 
B) median and mean 
C) the third quartile and the first quartile 
D) none of the above 
A) the highest value and the lowest value 
B) median and mean 
C) the third quartile and the first quartile 
D) none of the above

Question 8

Statistics is helpful in:

Accepted Answer

A) formulating and testing hypothesis 
B) prediction 
C) formulation of suitable policies 
D) all of the above 
A) formulating and testing hypothesis 
B) prediction 
C) formulation of suitable policies 
D) all of the above

Question 9

Statistics can be best considered as

Accepted Answer

A) An art 
B) Science 
C) Both art as well as science 
D) None of the above 
A) An art 
B) Science 
C) Both art as well as science 
D) None of the above

Question 10

Which of the following is least when deviations are taken from the median

Accepted Answer

A) range 
B) quartile deviation 
C) mean deviation 
D) standard deviation 
A) range 
B) quartile deviation 
C) mean deviation 
D) standard deviation

Question 11

The value in a series of observations which occurs with the greatest frequency is called:

Accepted Answer

A) median 
B) mean deviation 
C) standard deviation 
D) mode 
A) median 
B) mean deviation 
C) standard deviation 
D) mode

Question 12

Probability sampling and random sampling are

Accepted Answer

A) Anonymous 
B) Different terms 
C) Synonymous 
D) None of the above 
A) Anonymous 
B) Different terms 
C) Synonymous 
D) None of the above

Question 13

Mean deviation is

Accepted Answer

A) a relative measures 
B) an absolute measures 
C) both (a) and (b) 
D) none of the above 
A) a relative measures 
B) an absolute measures 
C) both (a) and (b) 
D) none of the above

Question 14

A set of vertical bars whose areas are proportional to the frequencies represented is known as:

Accepted Answer

A) Histogram 
B) Frequency polygon 
C) Ogive 
D) none of the above 
A) Histogram 
B) Frequency polygon 
C) Ogive 
D) none of the above

Question 15

A geometric mean of two numbers 12 and 27 is

Accepted Answer

A) 9 
B) 12 
C) 18 
D) 21 
A) 9 
B) 12 
C) 18 
D) 21

Question 16

Lowest value of variance can be

Accepted Answer

A) 1 
B) -1 
C) 2 
D) 0 
A) 1 
B) -1 
C) 2 
D) 0

Question 17

The average difference between the items in a distribution and the median or mean of that series is known as:

Accepted Answer

A) Range 
B) Mean deviation 
C) Inter-quartile range 
D) Standard deviation 
A) Range 
B) Mean deviation 
C) Inter-quartile range 
D) Standard deviation

Question 18

What is the median of the sample 5, 5, 11, 9, 8, 5, 8?

Accepted Answer

A) 5 
B) 6 
C) 8 
D) 9 
A) 5 
B) 6 
C) 8 
D) 9

Question 19

If two events A and B are independent, the probability that they will both occur is given by

Accepted Answer

A) P (
A)  + P (
B)  
B) P (
A)  x P (
B)  
C) P (
A)  - P (
B)  
D) P (
A)  + P (
B)  - P (A
B)  
A) P (
A)  + P (
B)  
B) P (
A)  x P (
B)  
C) P (
A)  - P (
B)  
D) P (
A)  + P (
B)  - P (A
B)

Question 20

If the probability of drawing a spade from a well shuffled pack of playing card is 14 then the probability that of the card drawn from a well shuffled pack of playing card is 'not a spade' is

Accepted Answer

A) 1 
B) 12 
C) 14 
D) 34 
A) 1 
B) 12 
C) 14 
D) 34

Karl Pearson has expressed the relationship between Mean, Median, and Mode as:

In a box, there are 8 red,7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

Statistics can be best considered as:

Which average is affected most by extreme observation?

Those in which the occurence or non occurence of an event in any one trial affects the probability of other event in other trial. This is known as

The coefficient of correlation

Interquartile range is the difference between

Statistics is helpful in:

Statistics can be best considered as

Which of the following is least when deviations are taken from the median

The value in a series of observations which occurs with the greatest frequency is called:

Probability sampling and random sampling are

Mean deviation is

A set of vertical bars whose areas are proportional to the frequencies represented is known as:

A geometric mean of two numbers 12 and 27 is

Lowest value of variance can be

The average difference between the items in a distribution and the median or mean of that series is known as:

What is the median of the sample 5, 5, 11, 9, 8, 5, 8?

If two events A and B are independent, the probability that they will both occur is given by

If the probability of drawing a spade from a well shuffled pack of playing card is 14 then the probability that of the card drawn from a well shuffled pack of playing card is 'not a spade' is

Correlation Analysis and Coefficient of Correlation

Correlation and Regression Analysis

Regression and Hypothesis Testing

Hypothesis Testing and Statistical Errors

Statistics and Quality Control

Statistics and Statistical Analysis

Probability, Correlation, and Index Numbers in Statistics

Time Series and Index Numbers in Business and Economics

Matrix Operations and Time Series Analysis

Fundamentals of Calculus

Filters

Exam 7: Statistics and Probability

Karl Pearson has expressed the relationship between Mean, Median, and Mode as:

In a box, there are 8 red,7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

Statistics can be best considered as:

Which average is affected most by extreme observation?

Those in which the occurence or non occurence of an event in any one trial affects the probability of other event in other trial. This is known as

The coefficient of correlation

Interquartile range is the difference between

Statistics is helpful in:

Statistics can be best considered as

Which of the following is least when deviations are taken from the median

The value in a series of observations which occurs with the greatest frequency is called:

Probability sampling and random sampling are

Mean deviation is

A set of vertical bars whose areas are proportional to the frequencies represented is known as:

A geometric mean of two numbers 12 and 27 is

Lowest value of variance can be

The average difference between the items in a distribution and the median or mean of that series is known as:

What is the median of the sample 5, 5, 11, 9, 8, 5, 8?

If two events A and B are independent, the probability that they will both occur is given by

If the probability of drawing a spade from a well shuffled pack of playing card is 14 then the probability that of the card drawn from a well shuffled pack of playing card is 'not a spade' is

Correlation Analysis and Coefficient of Correlation

Correlation and Regression Analysis

Regression and Hypothesis Testing

Hypothesis Testing and Statistical Errors

Statistics and Quality Control

Statistics and Statistical Analysis

Probability, Correlation, and Index Numbers in Statistics

Time Series and Index Numbers in Business and Economics

Matrix Operations and Time Series Analysis

Fundamentals of Calculus

Filters