a) What is the probability that a worker surveyed at random works i) in either the paper mill or the water- treatment plant? ii) somewhere other than the paper mill or the water-treatment plant?

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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Question
5. Of 150 workers surveyed in an industrial A-3
community, 65 worked in the paper mill and
30 worked in the water-treatment plant.
a) What is the probability that a worker
surveyed at random works
i) in either the paper mill or the water-
treatment plant?
ii) somewhere other than the paper mill
or the water-treatment plant?
b) What assumptions must you make in
part a)?
Transcribed Image Text:5. Of 150 workers surveyed in an industrial A-3 community, 65 worked in the paper mill and 30 worked in the water-treatment plant. a) What is the probability that a worker surveyed at random works i) in either the paper mill or the water- treatment plant? ii) somewhere other than the paper mill or the water-treatment plant? b) What assumptions must you make in part a)?
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