A door-to-door salesman expects to make a sale 22% of the time when starting the day. But making a sale increases his enthusiasm so much that the probability of a sale to the next customer is 0.4. If he makes no sale, the probability for a sale to the next customer stays at 0.22. What is the probability that he will make at least two sales with his first three visits?

A door-to-door salesman expects to make a sale 22% of the time when starting the day. But making a sale increases his enthusiasm so much that the probability of a sale to the next customer is 0.4. If he makes no sale, the probability for a sale to the next customer stays at 0.22. What is the probability that he will make at least two sales with his first three visits?

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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