simpangan rata rata dari data 6,6,7,7,7,9,9,9,10,10

Jawab :

Rata-rata = (6+6+7+7+7+9+9+9+10+10)/10
                = 80/10
                = 8

Simpangan rata-rata = |xn - xi|/n

   |6-8|+|6-8|+|7-8|+|7-8|+|7-8|+|9-8|+|9-8|+|9-8|+|10-8|+|10-8|
= ------------------------------------------------------------------------------
                                              10

= (2+2+1+1+1+1+1+1+2+2)/10
= 14/10
= 1,4


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