Question

If X is a discrete uniform random variable ranging from 12 to 24, its mean is:

a. 18.5
b. 19.5.
c. 18.0
d. 16.0

Answer 1

Explanation:

The mean of a discrete uniform distribution is the average of the minimum and maximum values of the distribution.

In this case, X ranges from 12 to 24, so the minimum value is 12 and the maximum value is 24. Therefore, the mean is:

Mean = (12 + 24) / 2 = 18

So the answer is c. 18.0.