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Julie is taking English and history. Suppose that at the outset of the term, her probabilities for getting As areP(grade of A in English class) = .70.P(grade of A in history class) = .60.P(grade of A in both English and history classes) = .50.
a. Are the events "grade of A in English class" and "grade of A in history class" independent? Explain how you know.
b. Use the addition rule for two events (Rule 2) to find the probability that Julie will get at least one A between her English and history classes.
Draw a Venn diagram that shows the relation between the events A and Bin Exercise 4.106. Indicate each of the following events on your diagram and use the information in Exercise 4.106 to calculate the probability of each event. Finally, describe..
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Find and interpret the multiple index of determination
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A researcher is analyzing a dataset to determine whether the independent variables predict students' reading level.
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