In a statistics class of 45 students, 11 got a final grade of A, 22 got a

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In a statistics class of 45 students, 11 got a final grade of A, 22 got a final grade of B, and 8 got a final grade of C.

a. What is the probability that a randomly chosen student got an A or a B?

b. What is the probability that a randomly chosen student got an A, a B, or a C?

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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