simpangan rata rata dari data 6,8,7,6,9,7,9,10,10

mean=6+8+7+6+9+7+9+10+10
= 72:9
=8

maaf kalo salah
#army
#17carat

X=( 6+8+7+6+9+7+9+10+10)
-----------------------------------
9
= 72/9
= 8

SR = |6-8|+|8-8|+|7-8|+|6-8|+|9-
8|+|7-8|+|9-8|+10-8|+|10-8|
-------------------------------------
8
= 2+0+1+2+1+1+1+2+2
------------------------------
9
= 12/9
= 1.33

Maaf kalo salah