Find missing frequency for ungrouped data 


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Find missing frequency for ungrouped data

Find missing frequency of the following observations.
1. 18,14,15,19,15,a,12,15,16 and Mean=16
2. 9,4,a,5,8,11 and Median=2

Find missing frequency for ungrouped data

1. Find missing frequency from the follwing data `18,14,15,19,15,a,12,15,16` and Mean`=16`
Here `18,14,15,19,15,a,12,15,16`
Here Mean `bar x = 16` and `n = 9`
`sum x_i = 18 + 14 + 15 + 19 + 15 + a + 12 + 15 + 16`
`= a + 124`
Mean `bar x = (sum x_i)/n`
`16 = (a + 124)/9`
`144 = a + 124`
`a = 144  124`
`a = 20`







