Question

The mean of 18, 28, x, 32, 14 and 36 is 23. Find the value of x. Sum of data

Answer 1

∵ Mean = `"Sum of data"/"Number of data"`

`=> 23 = (18 + 28 + x + 32 + 14 + 36)/6`

`=> 23 = (128 + x)/6`

`=> 23 xx 6 = 128 + x`

⇒ 138 = 128 + x

⇒ 138 - 128 = x

∴ x = 10