Question

the mean of 8,11,16,14,x and 13 is 66. Find the value of the observation x​

Answer 1

Answer:

Step-by-step explanation:

Mean = (8 + 11 + 16 + 14 + x + 13) ÷ 6

66 × 6 = 62 + x

x = 396 - 62

x = 334

Answer 2

We know that

$\bf Mean = \frac{Sum\:of\: all\: observations}{Number\:of\:observations}$

Here observations are

Number of observations = 6

Mean = 66

$\bf 66=\frac{8+11+16+14+x +13}{6}\\\\66\times 6=62+x\\\\396=62+x\\\\396-62=x\\\\334$

Hence,

x = 334