The lifetime risk of developing pancreatic cancer is about one in 78 (1.28%). Let X = the number of peopleyou ask until one says he or she has pancreatic cancer. Then X is a discrete random variable with a geometricdistribution: X~G~G (TB) or X G(0.0128).a. What is the probability of that you ask ten people before one says he or she has pancreatic cancer?b. What is the probability that you must ask 20 people?c. Find the (i) mean and (ii) standard deviation of X.

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Answered: The lifetime risk of developing…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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In the probability distribution to the right, the random variable X represents the number of marriages an individual aged 15 years or older has been involved in. Compute and interpret the mean of the random variable X. Hx = marriages (Type an integer or a decimal. Do not round.) X 0 1 2 3 4 5 P(x) 0.264 0.567 0.136 0.029 0.003 0.001
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