A consumer organization estimates that over a 1-year period 18% of cars will need to be repaired once, 5% will need repairs twice, and 4% will require three or more repairs. What is the probability that a car chosen at random will need a) no repairs? b) no more than one repair? c) some repairs?
A consumer organization estimates that over a 1-year period 18% of cars will need to be repaired once, 5% will need repairs twice, and 4% will require three or more repairs. What is the probability that a car chosen at random will need a) no repairs? b) no more than one repair? c) some repairs?
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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Question
A consumer organization estimates that over a 1-year period
18%
of cars will need to be repaired once,
5%
will need repairs twice, and
4%
will require three or more repairs. What is the probability that a car chosen at random will needa) no repairs?
b) no more than one repair?
c) some repairs?
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