12. The number of swimming accidents per week at a particular stretch of coastline is a Poisson with parameter 3. a. Find the probability that in any one week chosen at random exactly two swimming acci occur. b. Find the probability that in any four-week period there are fewer than four swimming ac
12. The number of swimming accidents per week at a particular stretch of coastline is a Poisson with parameter 3. a. Find the probability that in any one week chosen at random exactly two swimming acci occur. b. Find the probability that in any four-week period there are fewer than four swimming ac
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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Q12
Ans : a)0.2241; b) 0.0023
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