Number of Tellers (X) P(X) 0.029 0 1 0.049 2 0.078 3 0.155 4 0.212 5 0.262 6 0.215 a. What is the probability that exactly 4 tellers are busy at 12:00 noon? b. What is the probability that at least 2 tellers are busy at 12:00 noon? c. What is the probability that at least 2 but fewer than 5 tellers are busy at 12:00 noon?

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