When a customer enters a drugstore, the probabilities that he or she will have 0, 1, 2, or 3 prescriptions filled are 0.55, 0.30, 0.10 and 0.05, respectively. For a sample of seven people who enter the drugstore, find the probability that three will have no prescriptions, two will have 1 prescriptions, one will have 2 prescriptions, and 1 will have 3 prescriptions.

When a customer enters a drugstore, the probabilities that he or she will have 0, 1, 2, or 3 prescriptions filled are 0.55, 0.30, 0.10 and 0.05, respectively. For a sample of seven people who enter the drugstore, find the probability that three will have no prescriptions, two will have 1 prescriptions, one will have 2 prescriptions, and 1 will have 3 prescriptions.

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Description: When a customer enters a drugstore, the probabilities that he or she will have 0, 1, 2, or 3 prescriptions filled are 0.55, 0.30, 0.10 and 0.05, respectively. For a sample of seven people who enter the drugstore, find the probability that three will

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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