Business Statistics and Research Methods MCQs

Question 1

Which of the following are true for poisson distribution?

Accepted Answer

All of the above

Answer

The number of trials is indefinitely large

Answer

Probability of success is indefinitely small

Answer

Mean of poisson distribution is finite

Question 2

The limits of Karl Pearson's correlation coefficient value are:

Accepted Answer

±1

Answer

2

Answer

3

Answer

4

Question 3

The geometric mean of two digits-

Accepted Answer

12

Answer

13

Answer

14

Answer

15

Question 4

According to relative frequency approach P(X) is equal to

Accepted Answer

$$\mathop {\lim }\limits_{n 	o \infty } \frac{{{n_x}}}{n}$$

Answer

$$\mathop {\lim }\limits_{n 	o \infty } \frac{n}{{{n_x}}}$$

Answer

$$\mathop {\lim }\limits_{n 	o 0} \frac{{{n_x}}}{n}$$

Answer

None of these

Question 5

The mean of the marks of 50 students was 35. Later it was found that the marks of two students were wrongly read as 72 and 45 instead of 27 and 54. The correct mean will be

Accepted Answer

34.28

Answer

34.72

Answer

34.62

Answer

34.82

Question 6

If the total salary of 15 employees is Rs. 1,00,000 per month, then 1,00,000/15 shows-

Accepted Answer

average salary of every employee to per month

Answer

average salary per month

Answer

average salary per employee

Answer

monthly salary of each employee

Question 7

Which is not a function of financial analysis?

Accepted Answer

Reclassification

Answer

Trend study

Answer

Budgeting

Answer

Centralization of numbers

Question 8

If the coefficient of correlation between x and y is 0.28, covariance between x and y is 7.6 and the variance of x is 9, then the standard deviation of y series is

Accepted Answer

9.05

Answer

9

Answer

9.1

Answer

10

Question 9

If median is 31 and arithmetic average is 33, the value of mode will be

Accepted Answer

27

Answer

37

Answer

29

Answer

32