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Problem: mean deviation about mean {{10,11,12,13,14},{3,12,18,12,3}} [ Calculator, Method and examples ]

Solution:
Your problem `->` mean deviation about mean {{10,11,12,13,14},{3,12,18,12,3}}


`x`
`(1)`
`f`
`(2)`
`f*x`
`(3)=(2)xx(1)`
`|x-bar x|=|x-12|`
`(4)`
`f*|x-bar x|`
`(5)=(2)xx(4)`
1033026
1112132112
121821600
1312156112
1434226
---------------
--`n=48``sum f*x=576`--`sum f*|x-bar x|=36`


Mean `bar x=(sum f x)/n`

`=576/48`

`=12`

Mean deviation of Mean
`delta bar x = (sum f*|x - bar x|)/n`

`delta bar x = 36/48`






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