# Question: A sample of n 9 scores has a mean

A sample of n = 9 scores has a mean of M = 13.

After one score is added to the sample, the mean is found to be M = 12. What is the value of the score that was added?

After one score is added to the sample, the mean is found to be M = 12. What is the value of the score that was added?

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