Question

if the mean of 14, 25, x, 26, 75, 27 ,13 ,18 is 18.75 find the value of x​

Answer 1

mean= sum/n

$18.75 = \frac{14 + 25 + x + 26 + 75 + 27 + 13 + 18}{8}$

$18.75 = \frac{198 + x}{8}$

$18.75 \times 8 = 198 + x$

$150 = 198 + x$

$x = - 48$

thanks!