A sample of n = 5 scores has a mean of M = 8.One new score is added to the sample and the new mean is calculated to be M = 9.What is the value of new score?

Name: A sample of n = 5 scores has a mean of M = 8.One new score is added to the sample and the new mean is calculated to be M = 9.What is the value of new score?
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Question

Quizplus · Accepted Answer

The total of the original scores is 5 * 8 = 40. With the new score, the total becomes 6 * 9 = 54. The new score is 54 - 40 = 14.

A Sample of N = 5 Scores Has a Mean