AS/A2 Stats 1 Stats 2

S3 Topic 4: Goodness of fit and contingency tables
Use of c2 tables
Percentage points of the c2 distribution Below is part of a table concerning the values which a random variable with the c2 distribution on n degrees of freedom exceeds with the probability shown.

Use the options here to practice reading some values from the tables. Choose values for the degrees of freedom, n and Level of test, and use the tables to find the critical value. Then check your answer.

n : 1 2 3 4 5 Level: 0.100 0.050 0.025 0.010 0.005 Critical value =

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