The annual rainfall in a certain country varies from 0 to 9 inches and is a random variable with probability density function defined by f(x): Find the following probabilities for the annual rainfall in a randomly selected year. Round your answers to 4 decimal places as needed. What is the probability that the annual rainfall is greater than 7 inches per year? 9.5 - x 45 What is the probability that the annual rainfall is less than 6 inches per year? What is the probability that the annual rainfall is between 6 and 8 inches per year? 4

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.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 4E
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The annual rainfall in a certain country varies from 0 to 9 inches and is a random variable with probability
density function defined by
f(x) =
=
9.5 - x
45
Find the following probabilities for the annual rainfall in a randomly selected year. Round your answers to 4
decimal places as needed.
What is the probability that the annual rainfall is greater than 7 inches per year?
What is the probability that the annual rainfall is less than 6 inches per year?
What is the probability that the annual rainfall is between 6 and 8 inches per year?
4
Transcribed Image Text:The annual rainfall in a certain country varies from 0 to 9 inches and is a random variable with probability density function defined by f(x) = = 9.5 - x 45 Find the following probabilities for the annual rainfall in a randomly selected year. Round your answers to 4 decimal places as needed. What is the probability that the annual rainfall is greater than 7 inches per year? What is the probability that the annual rainfall is less than 6 inches per year? What is the probability that the annual rainfall is between 6 and 8 inches per year? 4
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