4) In Toronto, Canada, 55% of people pass the drivers' road test. Suppose that 100 people take the test. a) What is the number of people who are expected to pass? b) What is the standard deviation for the number expected to pass? c) What is the probability that less than 50 passed?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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I want answer a,b,c,d
4) In Toronto, Canada, 55% of people pass the drivers' road test. Suppose that 100 people
take the test.
a) What is the number of people who are expected to pass?
b) What is the standard deviation for the number expected to pass?
c) What is the probability that less than 50 passed?
d) What is the probability that at least 49 passed?
e) What is the probability that at most 45 passed?
Transcribed Image Text:4) In Toronto, Canada, 55% of people pass the drivers' road test. Suppose that 100 people take the test. a) What is the number of people who are expected to pass? b) What is the standard deviation for the number expected to pass? c) What is the probability that less than 50 passed? d) What is the probability that at least 49 passed? e) What is the probability that at most 45 passed?
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