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

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


`x`
`(1)`
`f`
`(2)`
`|x-Z|=|x-12|`
`(3)`
`f*|x-Z|`
`(4)=(2)xx(3)`
10326
1112112
121800
1312112
14326
------------
--`n=48`--`sum f*|x-Z|=36`


Mode :
the frequency of observation `12` is maximum (`18`)

`:. Z = 12`

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

`delta bar x = 36/48`






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