Question 1:

Explain the importance of sampling.

Question2:

Describe the differences between primary data and secondary data.

Question 3:

First, four moments about the mean of distribution are 12, 13, 54, 56, and 25. Find coefficient of

skewness and kurtosis.

Question 4:

A dice is rolled and two coins are tossed. Find the probability of rolling a 5 and flipping two

tails.