Let X be the random variable that represents the number of years a patient with a particular

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Let X be the random variable that represents the number of years a patient with a particular type of cancer survives after receiving radiation therapy. Suppose X has an exponential distribution with parameter k. Research indicates that a patient with this type of cancer has an 80% chance of surviving for at least 5 years after radiation therapy begins.

a. Use this information to determine k.

b. What is the probability of a cancer patient surviving at least 10 years after beginning radiation therapy?

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Calculus For Business, Economics And The Social And Life Sciences

ISBN: 9780073532387

11th Brief Edition

Authors: Laurence Hoffmann, Gerald Bradley, David Sobecki, Michael Price

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