Posted by **Misty** on Saturday, September 29, 2012 at 2:01pm.

A sample has a mean of M = 25. If one person with a score of X = 25 is added to the sample, what effect will it have on the sample mean?

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**Ms. Sue**, Saturday, September 29, 2012 at 2:06pm
Nothing.

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**Misty**, Saturday, September 29, 2012 at 2:16pm
@ Ms. Sue, your answer is nothing? can you explain why the effect is nothing? I'm not understanding.

- Math Statistics -
**Ms. Sue**, Saturday, September 29, 2012 at 2:17pm
The new person's score is the same as the mean; therefore the mean will not be affected.

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