Julie is taking english and history suppose that at the, Ask an Expert

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Julie is taking English and history. Suppose that at the outset of the term, her probabilities for getting As are
P(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.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92221714

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