Chi-square (Discrete Distribution)

Construct the table:

observed expected

xi freq. Oi freq. Ei

0 12 2.6 7.87

1 10 9.6

2 19 17.4 0.15

3 17 21.1 0.80

4 10 19.2 4.41

5 8 14.0 2.57

6 7 8.5 0.26

7 5 4.4

8 5 2.0

9 3 17 0.8 7.6 11.62

10 3 0.3

11 1 0.1

n=100 n*Pi

Degree of freedom:

k-s-1 = 7-1-1 = 5



Since , the null
hypothesis is rejected. A better
fitting distribution has to be found
or use the empirical distribution of
the data.

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