(Answered) Question the annual number of industrial accidents

Statistics

Question: The annual number of industrial accidents occurring in a particular manufacturing plant is known to follow a Poisson distribution with mean 12.

a. What is the probability of observing exactly 12 accidents during the coming year?

b. What is the probability of observing no more than 12 accidents during the coming year?

c. What is the probability of observing at least 15 accidents during the coming year?

d. What is the probability of observing between 10 and 15 accidents (inclusive) during the coming year? Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. 5.7 Fitting a Probability Distribution to Data with @Risk 255

e. Find the smallest integer k such that we can be at least 99% sure that the annual number of accidents occurring will be less than k.

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