If observed frequencies are 5,10,15 and expected frequencies are each equal to 10 then chi square value is

5

Step-by-step explanation:

Given :

Observed values = 5, 10, 15

Expected freqencies = 10

χ² = Σ(observed - Expected)² / Expected

χ² = (5-10)²/10 + (10-10)²/10 + (15-10)²/10

χ² = 25/10 + 0/10 + 25/10

χ² = 2.5 + 0 + 2.5

χ² = 5

faster, im not sure why but i know it is faster

42.4 6th grade students prefer hip hop

step-by-step explanation:

40 percent of 106 = 42.4