Business Statistics and Research Methods MCQs

Question 1

In regression analysis, it is assumed that there is an actual relationship between the . . . . . . . . and independent variable.

Accepted Answer

dependent

Answer

another variable

Answer

given variable

Answer

None of these

Question 2

Two cards are drawn from a well-shuffled pack of 52 cards. Find the probability that they are both aces if the first is replaced.

Accepted Answer

$$\frac{1}{{169}}$$

Answer

$$\frac{2}{{52}}$$

Answer

$$\frac{1}{{221}}$$

Answer

None of these

Question 3

The Standard deviation of Poisson distribution is: (m = mean)

Accepted Answer

√m

Answer

m

Answer

m2

Answer

1/√m

Question 4

Consider the given statement, "the conclusions obtained statistically are universally true". This statement is

Accepted Answer

false

Answer

true

Answer

partly true

Answer

partly false

Question 5

While constructing the cost-of-living index for a particular class, the commodities they consume have varying importance. Which of the following measures of central tendency should be counted as the best option?

Accepted Answer

Weighted Arithmetic Mean

Answer

Harmonic Mean

Answer

Weighted Geometric Mean

Answer

Median

Question 6

There are two equal numbers 5 and 5 in a series. What will be the geometric mean of the series?

Accepted Answer

5

Answer

10

Answer

3.33

Answer

2.5

Question 7

There are two types of measures of dispersion:

Accepted Answer

Absolute measure of dispersion and Relative measure of dispersion

Answer

Nominal measure of dispersion and Real measure of dispersion

Answer

Nominal measure of dispersion and Relative measure of dispersion

Answer

Real measure of dispersion and Relative measure of dispersion

Question 8

If the standard deviation is 4, the number of observations is 10 and the sum of the terms is 160, then the value of the coefficient of deviation will be

Accepted Answer

25%

Answer

20%

Answer

35%

Answer

16%

Question 9

Which one of the following is not a method of studying association of attributes?

Accepted Answer

Concurrent Deviation Method

Answer

Proportion Method

Answer

Yule's Method

Answer

Coefficient of Contingency