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With reference to Exercise 97, find
(a) the marginal distribution of X;
(b) the conditional distribution of Y given X = 0.
Exercise 97
Two textbooks are selected at random from a shelf that contains three statistics texts, two mathematics texts, and three physics texts. If X is the number of statistics texts and Y the number of mathematics texts actually chosen, construct a table showing the values of the joint probability distribution of X and Y.
a survey of 100 recent fatal traffic accidents showed that 60 were alcohol-related. find the 95 confidence interval of
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