Question

If the mean of 16,14, x, 23, 20 is 18, find the value of the x.

Answer 1

Answer:

mean =sum of all values÷ no. of values

$\frac{sum \: of \: all \: value}{no.of \: value} \\ 18= \frac{16 + 14 + x + 23 + 20}{5} \\ 18 = \frac{53 + x}{5} \\ 60 = 53 + x \\ 60 - 53 = x \\ x = 7$