Business Statistics and Research Methods MCQs

Question 1

The second and fourth moments about mean are 4 and 48 respectively, then the distribution is:

Accepted Answer

Mesokurtic or normal

Answer

Leptokurtic

Answer

Platykurtic

Answer

Positively skewed

Question 2

The circular test is satisfied when-

Accepted Answer

P12 × P23 × P31 = 1

Answer

P12 × P21 × P32 = 1

Answer

P12 × P32 × P31 = 1

Answer

P12 × P23 × P13 = 1

Question 3

Z-list is used to know whether two population means are

Accepted Answer

equal

Answer

different

Answer

not defined

Answer

None of these

Question 4

Diagrams are more suitable to illustrate the data, which is . . . . . . . . while . . . . . . . . is better represented by graphs.

Accepted Answer

discrete, continuous

Answer

continuous, discrete

Answer

less than, more than

Answer

None of these

Question 5

The regression lines cut each other at the point of

Accepted Answer

average of x and y

Answer

average of x only

Answer

average of y only

Answer

none of them

Question 6

Which of the following cannot be calculated with the help of graph?

Accepted Answer

Mean

Answer

Median

Answer

Mode

Answer

Quartile

Question 7

If bxy = 0.25 and byx = 0.64, correlation coefficient is:

Accepted Answer

0.4

Answer

0.16

Answer

0.89

Answer

0.3

Question 8

If two events A and B are dependent, the conditional probability of B given A, i.e, P(A/B) is calculated as:

Accepted Answer

P(AB)/P(A)

Answer

P(AB)/P(B)

Answer

P(A)/P(B)

Answer

P(A)/P(AB)

Question 9

Which of the following is non-parametric test?

Accepted Answer

Chi-square test

Answer

'F' test

Answer

't' test

Answer

'z' test