tentukan simpangan baku 5 7 7 8 8 8 9 10 11 12
Matematika
khoirinimuslima
Pertanyaan
tentukan simpangan baku 5 7 7 8 8 8 9 10 11 12
1 Jawaban
-
1. Jawaban Yjeniy
5+7+7+8+8+8+9+10+11+12 / 10
= 85/10
= 8.5
= (5-8.5)²+(7-8.5)²+(7-8.5)²+(8-8.5)²+(8-8.5)²+(8-8.5)²+(9-8.5)²+(10-8.5)²+(11-8.5)²+(12-8.5)² / 10
=12.25+2.25+2.25+0.25+0.25+0.25+0.25+2.25+6.25+12.25 / 10
= 38.5/10
= 3.85