varrians dari data 2,3,5,4,1

Data : 2, 3, 5, 4, 1

Tentukan Mean terlebih dahulu :
Mean = 2 + 3 + 5 + 4 + 1 / 5 = 3

Tentukan Varians :
S2 = 1/5 (2-3)2 + (3-3)2 + (5-3)2 + (4-3)2 + (1-3)2

S2 = 1/5 (1 + 0 + 4 + 1 + 4)
S2 = 1/5 (10)
S2 = 2

Jadi Varians (S2) = 2