Question

9.
The mean of 8, 11, 6, 14, x and 13 is 66. Find the value of the observation x.

detaled explanition gets brainlest

Answer 1

Answer:

8+11+6+14+x+13\6= 66

28+24+x\6=66

52+x=396

x=396-52

x=344

Step-by-step explanation:

make me as brainlest

Answer 2

Step-by-step explanation:

❤Mean = $\frac{ Sum~of~observations}{Total~no.~of~observations}$ = 66

❤Mean = $\frac{ 8~+~11~+~6~+~14~+~13~+~x}{ 6 }$ = 66

❤Mean = $\frac{ 52 + x }{ 6 }$ = 66

❤Mean = 52 + x = 66 × 6

❤Mean = 52 + x = 396

• x = 396 - 52
• x = 344

:. $\large\fbox\green{ x \: = \: 344 }$