|
|
|
|
|
|
|
|
|
|
Solution
|
Solution provided by AtoZmath.com
|
|
|
|
Missing value calculator with Mean
|
 1. 18,14,15,19,15,a,12,15,16 and Mean=16
2. 85,96,76,108,85,x,100,85,70,95 and Mean=88
|
Example1. Find missing value from the following data
`18,14,15,19,15,a,12,15,16` and mean`=16`
Solution:
Here `18,14,15,19,15,a,12,15,16`
Here Mean `bar x=16` and `n = 9`
`sum x=18 + 14 + 15 + 19 + 15 + a + 12 + 15 + 16`
`=a+124`
Mean `bar x=(sum x)/n`
`16=(a+124)/9`
`144=a+124`
`a=144-124`
`a=20`
|
|
|
|
|
|
|
|
