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25 September, 19:16

Which value can be added to the set below without changing its mean?

{4, 10, 14, 18, 22, 22}

O 0

O 15

O 16

O 22

+2
Answers (1)
  1. 25 September, 21:05
    0
    15 ...

    Step-by-step explanation:

    4, 10, 14, 18, 22, 22

    Mean = (4 + 10 + 14 + 18 + 22 + 22) / 6

    = 90/6

    = 15.

    Number to be added, 'y'

    For the mean to be the same

    (90 + y) / 7 = 15

    90 + y = 15 * 7

    90 + y = 105

    y = 105 - 90

    = 15
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