In a country of 80 million people, it is observed that 15% of the population have hearing trouble. a. Show that we can use normal distribution to determine probabilities. b. In a random sample of 120 people, what is the probability at most 12% have hearing trouble? c. Suppose that a random sample of 120 people who regularly listen to the music using headphones result in 26 having hearing trouble. What might you conclude

In a country of 80 million people, it is observed that 15% of the population have hearing trouble. a. Show that we can use normal distribution to determine probabilities. b. In a random sample of 120 people, what is the probability at most 12% have hearing trouble? c. Suppose that a random sample of 120 people who regularly listen to the music using headphones result in 26 having hearing trouble. What might you conclude

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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