What is the probability of going 180 or more days between colds? b. What is the probability of going 240 or more days?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Medical research has concluded that people experience a common cold roughly two times per year. Assume that the time between colds is normally distributed with a mean of 160 days and a standard deviation of 40 days. a. What is the probability of going 180 or more days between colds? b. What is the probability of going 240 or more days? c. What is the
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