A category 4 hurricane strikes the U. S. mainland once every 4 years, on average, a) What are the expected value and standard deviation of the number of category 4 hurricanes that will strike the U. S. mainland in the next century (100 years)? b) What is the probability that exactly 3 such hurricanes will strike the U. S. mainland in the next 10 years?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
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A category 4 hurricane strikes the U. S. mainland once every 4 years, on average,

a) What are the expected value and standard deviation of the number of category 4 hurricanes
that will strike the U. S. mainland in the next century (100 years)?
b) What is the probability that exactly 3 such hurricanes will strike the U. S. mainland in the
next 10 years?

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