Varians dari data 6,2,9,8,10,6,4,3 adalah...

Data = 2,3,4,6,6,8,9,10
x̄ = 2+3+4+6+6+8+9+10 / 8 = 48 / 8 = 6
S² = Σfi (xi - x̄)² / n
= 1(2-6)² + 1(3-6)² + 1(4-6)² + 2(6-6)² + 1(8-6)² + 1(9-6)² + 1(10-6)² / 8
= 1(-4)² + 1(-3)² + 1(-2)² + 2(0)² + 1(2)² + 1(3)² + 1(4)² / 8
= 16 + 9 + 4 + 0 + 4 + 9 + 16 / 8
= 58 / 8 
=7,25