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experiment. These experiments may be binomial or multinomial statistical experiment. In the experiment the

observations helps to tell the actual count and the expected count is found by mathematical models. The Chi

square formula is given by:

∑

When Chi square is zero that means the difference between actual and observed is zero or meaning both are

same. It is also known as “goodness of fit”

Find = (e – f)^2/e and then find the sum for all the 4 values.

(10-3)^2/10 + (30-15)^2/30 + (40-30)^2/40 + (30-20)^2/30

4.9 + 7.5 + 2.5 + 3.33 = 18.23

Find = (e – f)^2/e and then find the sum for all the 4 values.

(10-8)^2/10 + (45-42)^2/45 + (30-28)^2/30 + (50-45)^2/50

0.4 + 0.20 + 0.133 + 0.5 = 1.233