Question

for what value of x the mean of the following data is : 17,x,x+3,18,35and17.​

Answer 1

Answer:

Mean = 17 + x + (x+3) + 18 + 35 + 17 / 6

         = 17 + 2x + 18 + 35 + 20 / 6

          = 2x + 90 / 6

      6 = 90 + 2x

      2x = 90 - 6

      x = 84 / 2

      x = 42

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