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\(\pi\)
7
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\(\div\)
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A 12-sided die is rolled 120 times. The observed frequencies of the results are:
Outcome
1
2
3
4
5
6
7
8
9
10
11
12
Freq
8
9
11
10
12
11
9
10
12
9
10
9
Test at the \(5\pourcent\) level whether the die is fair.
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