Pre-Algebra

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Find the mean of the following data set:

25, 30, 20, 20, 25, 35, 35, 10

15
20
25
30

15 IS MY ANSWER

  • Pre-Algebra -

    since almost all the values are greater than 15, it is unlikely that the mean is 15.

    Add up all the values and divide by 8, since there are 8 numbers. Now what do you get?

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