Question

If the mean of 12, 14, 11, 17, x is 14 what is the value of x ? ​

Answer 1

Answer: The average of a given set of numbers is called the Arithmetic mean, or simply the mean, of the given numbers. Hence, the value of x = 4.

Coming to the question ;

Number of observations = 9

Sum of observations

= 12 + 5 + 3 + 18 + 10 + 17 + x + 6 + 6

= 77 + x

Now,

Mean =

⇒ 9 =

⇒ 9 × 9 = 77 + x

⇒ 81 = 77 + x

⇒ x = 81 - 77

⇒ x = 4

Hence, the value of x = 4.

Answer 2

Step-by-step explanation:

given mean =14

given observation =12,14,11,17,x

formula. sum of observation

--------------------------

no of observation

12+11+14+17+x

--------------------. = 14

5

54+x

--------. = 14

5

54+x. = 14×5

54+x = 70

x= 70 - 54= 16

x= 16

hope this answer wil correct