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Find mean {{10,3},{11,12},{12,18},{13,12},{14,3}}

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


`x`
`(1)`
Frequency `(f)`
`(2)`
`f*x`
`(3)=(2)xx(1)`
103 30 `30=3xx10`
`(3)=(2)xx(1)`
1112 132 `132=12xx11`
`(3)=(2)xx(1)`
1218 216 `216=18xx12`
`(3)=(2)xx(1)`
1312 156 `156=12xx13`
`(3)=(2)xx(1)`
143 42 `42=3xx14`
`(3)=(2)xx(1)`
---------
`n=48``sum f*x=576`


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

`=576/48`

`=12`








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