In a sample of size 40,the sample mean is 15.In this case,the sum of all observations in the sample is Σ X_i = 600.

Name: In a sample of size 40,the sample mean is 15.In this case,the sum of all observations in the sample is Σ X i = 600.
Brand: Quizplus
Rating: 4.8 (43 reviews)

Question

Quizplus · Accepted Answer

The sum of all observations in the sample can be calculated using the formula Σx = n x̄, where n is the sample size and x̄ is the sample mean. Thus, in this case, Σx = 40 x 15 = 600, which matches the given statement. Therefore, the answer is A (True).

In a Sample of Size 40,the Sample Mean Is 15