Varian dari data 10,20,20,40,40,50

Statistik

rata" (x)
= (10 + 20 + 20 + 40 + 40 + 50)/6
= 180/6
= 30

Varian (v) _ (gak punya simbol varian)
= √(((10-30)² + 2(20-30)² + 2(40-30)² + (50-30)²)/6)
= √(1200/6)
= √200
= 10√2