The switchboard in a Minneapolis law office gets an average of 2 incoming phone calls during the noon hour on Mondays. Experience shows that the existing staff can handle up to six calls in an hour. Let X = the number of calls received at noon. What is the probability that the office receives a. exactly 7 calls at noon on Monday. b. exactly 10 calls at noon on Monday

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.6: Permutations
Problem 31E
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The switchboard in a Minneapolis law office gets an average of 2 incoming phone calls during the noon hour on Mondays. Experience shows that the existing staff can handle up to six calls in an hour. Let X = the number of calls received at noon. What is the probability that the office receives

a. exactly 7 calls at noon on Monday.
b. exactly 10 calls at noon on Monday

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