Question

the mean of observation is 7,14,26,18,15,23,16 and x is 16. find the value of x?​

Answer 1

Answer:

$\frac{7 + 14 + 26 + 18 + 15 + 23 + 16 + x}{8} = 16$

$\frac{119 + x}{8} = 16$

$119 + x = 128$

$x = 9$