Four identical six-sided dice, each with faces marked 1 to 6 are rolled 200 times. At...

Four identical six-sided dice, each with faces marked 1 to 6 are rolled 200 times. At each rolling, a record is made of the number of dies whose score on the uppermost face is even. The result is as follows.

No. Of even score, X_i	Frequency, f_i
0	10
1	41
2	70
3	57
4	22

a) Explain why the binomial model might describe the distribution of X.

b) Perform the ?2 -test at ? = 0.05 to test whether the sample used comes from a binomial.

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Expert Solution

orchestra answered 1 year ago

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