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27 July, 06:27

Find the mean of this set of numbers.

7, - 9, 6, - 10, - 13, - 5

A.

7.7

B.

-24

C.

4

D.

-4

+2
Answers (2)
  1. 27 July, 06:52
    0
    First step when finding the mean is to add all the values together

    7 + - 9 + 6 + - 10 + - 13 + - 5

    To make this easier, first add all the positive numbers 7 + 6 = 13

    Then add (basically take away) the minus values one by one

    13 - 9 = 4

    4 - 10 = - 6

    -6 - 13 = - 19

    -19 - 5 = - 24

    Next step is to divide this total by the number of values there were

    In this case, there were 6 values

    -24 / 6 = - 4

    D. - 4
  2. 27 July, 06:57
    0
    Mean of the above set of numbers is D. - 4

    Mean is the average of the sum of the numbers.

    add all the numbers : 7 + (-9) + 6 + (-10) + (-13) + (-5) = - 24

    divide the sum by the count of numbers added: - 24/6 = - 4
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