simpangan rata-rata dari data 30,32,32,35,31,31,31,dan 30 ? a. 1/8 b.9/8. c.10/8. d.11/8. e. 15/8

30+32+32+35+31+31+31+30
=252/8 = 31,5
(30-31.5)+(32-31.5)+(32-31.5)+(35-31.5)+(31-31.5)+(31-31.5)+(31-31.5)+(30-31.5)
= 1.5+0.5+0.5+3.5+0.5+0.5+0.5+1.5
=9 --> 9/8

Semoga membantu :)