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