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Find Sample Variance {1,2,3,2,3,6}

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Your problem `->` Sample Variance {1,2,3,2,3,6}


`x``x^2`
1 1 `1=1xx1`
2 4 `4=2xx2`
3 9 `9=3xx3`
2 4 `4=2xx2`
3 9 `9=3xx3`
6 36 `36=6xx6`
------
`sum x=17``sum x^2=63`


Sample Variance `S^2 = (sum x^2 - (sum x)^2/n)/(n-1)`

`=(63 - (17)^2/6)/5`

`=(63 - 48.1667)/5`

`=14.8333/5`

`=2.9667`








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