Overall, Sergeant Tamez only hits the (dime-sized) bulls-eye (from 1,000 yards in gale-force winds) with 56% of her pistol shots (that is, the probability that she hits the bulls-eye with any given pistol shot is .56). (a) One morning, Sergeant Tamez takes 140 pistol shots. What is the probability that she hits the bulls-eye exactly 80 times? (b) Another morning, Sergeant Tamez takes 300 pistol shots. What is the probability that she hits the bulls-eye 150 or more times? Every day for eternity Sergeant Tamez takes 500 pistol shots, and records the number of times she hits the bulls-eye. (c) Find the mean μ, and the standard deviation σ, of the numbers (of times she hits the bulls-eye on different days) that Sergeant Tamez records.

Overall, Sergeant Tamez only hits the (dime-sized) bulls-eye (from 1,000 yards in gale-force winds) with 56% of her pistol shots (that is, the probability that she hits the bulls-eye with any given pistol shot is .56). (a) One morning, Sergeant Tamez takes 140 pistol shots. What is the probability that she hits the bulls-eye exactly 80 times? (b) Another morning, Sergeant Tamez takes 300 pistol shots. What is the probability that she hits the bulls-eye 150 or more times? Every day for eternity Sergeant Tamez takes 500 pistol shots, and records the number of times she hits the bulls-eye. (c) Find the mean μ, and the standard deviation σ, of the numbers (of times she hits the bulls-eye on different days) that Sergeant Tamez records.

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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