Simpangan baku dari 5,4,7,8,6,6,5,7
Jawaban Terkonfirmasi
Rata² = 48:8 =6
s² =[ (5-6)²+(4-6)²+(7-6)²+(8-6)²+(6-6)²+(6-6)²+(5-6)²+(7-6)²]/8
=(1+4+1+4+0+0+1+1)/8
= 12/8 = 3/2
s = √(3/2) = (1/2)√6
Simpangan baku dari 5,4,7,8,6,6,5,7
Rata² = 48:8 =6
s² =[ (5-6)²+(4-6)²+(7-6)²+(8-6)²+(6-6)²+(6-6)²+(5-6)²+(7-6)²]/8
=(1+4+1+4+0+0+1+1)/8
= 12/8 = 3/2
s = √(3/2) = (1/2)√6