Suppose that in the AOA building, we observe the presence of nine people at work. Overall 1 on campus, 85 percent of people wearing masks while working. (a) What is the probability that exactly 3 people in AOA are wearing a mask. (b) What is the probability that at least two people in AOA are not currently wearing a mask? (c) Compute the range-rule-of-thumb interval (pe – 20, µ+20) for the number of people that are wearing a mask. (d) Compute the coefficient of variation for the number of people that are wearing a mask.

Suppose that in the AOA building, we observe the presence of nine people at work. Overall 1 on campus, 85 percent of people wearing masks while working. (a) What is the probability that exactly 3 people in AOA are wearing a mask. (b) What is the probability that at least two people in AOA are not currently wearing a mask? (c) Compute the range-rule-of-thumb interval (pe – 20, µ+20) for the number of people that are wearing a mask. (d) Compute the coefficient of variation for the number of people that are wearing a mask.

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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