Question

Tentukan Simpangan Baku dari 6 6 7 7 7 9

Answer 1

Rata - rata nya = 7

s= akar (6-7).7 + (6-7).7 + (7-7).7 + (7-7).7 + (7-7).7 + (9-7).7
s = akar 1 + 1 + 0 + 0 + 0 + 14
s = akar 16
s = 4