Business Statistics and Research Methods MCQs

Question 1

In a frequency distribution, Bowley's coefficient of skewness is 0.6, if the sum of two quartiles is 100 and median is 38, the value of third quartile will be

Accepted Answer

70

Answer

30

Answer

60

Answer

40

Question 2

Which one of the following formulae is used to calculate probable error of correlation coincident between two variables of 'n' pairs of observations?

Accepted Answer

$$0.6745\left[ {\frac{{1 - {r^2}}}{{\sqrt n }}} \right]$$

Answer

$$0.5758\left[ {\frac{{1 - {r^2}}}{{\sqrt n }}} \right]$$

Answer

$$0.675\left[ {\frac{{1 - {r^2}}}{n}} \right]$$

Answer

$$0.5758\left[ {\frac{{1 - {r^2}}}{n}} \right]$$

Question 3

If the third moment about mean is zero, then the distribution is:

Accepted Answer

Symmetrical

Answer

Positively skewed

Answer

Negatively skewed

Answer

Mesokurtic

Question 4

In which approach to probability the outcomes are equally likely to occur?

Accepted Answer

Classical Probability

Answer

Subjective Probability

Answer

Relative Frequency

Answer

Independent

Question 5

The mean deviation is minimal-

Accepted Answer

from the median

Answer

from the mean

Answer

from the mode

Answer

from 1st quartile

Question 6

In case of . . . . . . . . distribution mean, median, mode coincide.

Accepted Answer

symmetrical

Answer

asymmetrical

Answer

moderately asymmetrical

Answer

None of the above

Question 7

According to central limit theorem, if the sample size increases, distribution is said to be . . . . . . . .

Accepted Answer

normal distribution

Answer

binomial distribution

Answer

posian distribution

Answer

None of these

Question 8

Consider the following statements. Assertion (A): A reasonably large sized sample drawn randomly from a given population contains almost all the characteristics of the population. Reason (R): As per the sampling theory, the assertion is based only on the 'Law of Inertia of Large Numbers'.

Accepted Answer

Assertion (A) is correct but the Reason (R) as per the sampling theory is not fully correct

Answer

Assertion (A) is correct and Reason (R) as per the sampling theory is also fully correct

Answer

Both Assertion (A) and Reason (R) are incorrect

Answer

Assertion (A) is incorrect but the Reason (R) is sufficient as per the sampling theory

Question 9

Which of the following requirements for a dissertation may depend on your institution?

Accepted Answer

All of the above

Answer

Whether an abstract should be included

Answer

The format for referencing

Answer

The size of the study