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Question

gx = 8y + 18, g  = 10. If the mean of the distribution is 5 , what is the value of y?


  1. 12

  2. 14

  3. 15

  4. 18


Solution

The correct option is C

15


Mean = gxg

8y+18 = 5×10
8y = 5018 = 32
y=4

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