A study funded by the federal government found that about 1 in 5 Americans suffered from some form of mental illness during the course of a year. If 20 adults are selected at random. What is the probability that in a 1-year period. a) Exactly 4 will experience some type of mental illness? Compute four decimal places b) At least 4 will have such an experience?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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A study funded by the federal government found that about 1 in 5 Americans suffered from some form of mental illness during the course of a year. If 20 adults are selected at random. What is the probability that in a 1-year period. a) Exactly 4 will experience some type of mental illness? Compute four decimal places b) At least 4 will have such an experience? Compute four decimal places
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