Mathematics, 23.08.2019 20:30 betsylancer8071

Here are 10 test scores: 30, 74, 76, 77, 78, 79, 80, 80, 82, 84. the mean of these scores is 74.
does this set have an outlier and, if so, how does removing it affect the mean?

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Here are 10 test scores: 30, 74, 76, 77, 78, 79, 80, 80, 82, 84. the mean of these scores is 74.