The waiting line at a popular bakery shop can be quite long. Suppose that the waiting time in minutes has probability density function f(x) = 0.1 e - 0.1x. Determine the probability that a customer waits more than 18 minutes. Round your final answer to three decimal places (e.g., 98.765).

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
Section13.1: Continuous Probability Models
Problem 4E
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The waiting line at a popular bakery shop can be quite long. Suppose that the waiting time in minutes has probability density function f(x) = 0.1 e - 0.1x. Determine the probability that a customer waits more than 18 minutes. Round your final answer to three decimal places (e.g., 98.765). 

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