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Back to 5.3 The Exponential Distribution (Optional)

5.3 Exercise 12

Avg difficulty 2.5

Suppose that the distance, in miles, that people are willing to commute to work is an exponential random variable with a decay parameter 1 20 \frac{1}{20}. Let X = the distance people are willing to commute in miles. What is m, μ, and σ? What is the probability that a person is willing to commute more than 25 miles?

OpenStax Statistics, 5.3 The Exponential Distribution (Optional), exercise 12

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