In a sample of size 40, the sample mean is 15.In this case, the sum of all observations in the sample is

Question

Quizplus · Accepted Answer

The sum of all observations in a sample can be found by multiplying the sample mean by the sample size. In this case, the sum of all observations would be 15 x 40 = 600. The sum of all observations in the sample can be calculated using the formula:

Sum of observations = Sample mean x Sample size

In this case, we have:

Sum of observations = 15 x 40 = 600

Therefore, the statement is true and the answer is A.

In a Sample of Size 40, the Sample Mean Is