Question

if the mean of 5,7,9,11,13,x,21 is 12 . find the value of x​

Answer 1

Answer:

15

Step-by-step explanation:

nice .... ritik

Answer 2

Answer:

x= 17

Step-by-step explanation:

Given : Arithmetic mean of 7, 9, 11, 13, x and 21 = 13.

Arithmetic Mean = Sum of all observations/Number of observations

13 = (7 + 9 + 11 + 13 + x +21)/6

13 = (61 + x)/6

61 + x = 13*6

61 + x = 78

x = 78 - 61

x = 17  

So, the value of x is 17.

hope it helped please mark the brainliest