Math, asked by darsh251, 3 months ago

6, 7, 9, 11, X, 12, 13, 14. If the mean of following data is 10. Find the value of
X. *
O (a) 12
O
(b) 11
O
(C) 10
O (
(d) 8​

Answers

Answered by tennetiraj86
15

Step-by-step explanation:

Given :-

The mean of the observations 6, 7, 9, 11, X, 12, 13, 14 is 10

To find:-

Find the value of x?

Solution:-

Given observations are :

6, 7, 9, 11, X, 12, 13, 14.

Sum of all observations =

=6+7+9+11+X+12+13+14

=72+X

Sum of all observations = 72+X

Number of all observations = 8

Mean = Sum of all observations/ Number of all observations

=>(72+X)/8

According to the given problem

Mean = 10

=>(72+X)/8 = 10

=>72+X = 10×8

=>72+X = 80

= >X = 80-72

=>X = 8

Answer:-

The value of X for the given problem is 8

Option D

Used formulae:-

  • Mean = Sum of all observations/ Number of all observations
Answered by anshikasingh26695
0

Answer:

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