Remove one value from the following data to make each statement true.


a)The mean is 56.09

How do you know the removed value makes it true?

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asked by Sara
  1. Can someone help me with this question? It's urgent..

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    posted by Sara
  2. Add up all the numbers: 632
    There are 12 numbers, so the mean is 52.666

    Now, you want to remove one value so that the remaining 11 have a mean of 56.09.

    Well, 11*56.09 = 617

    So, if you remove one of the 15's, the remaining 11 numbers add up to 617, giving the desired mean.

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    posted by Steve
  3. Thank you so much !

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    posted by Sara

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