Of 150 workers in a town surveyed, 65 work in the mall and 30 work in...
Of 150 workers in a town surveyed, 65 work in the mall and 30 work in the factory. What is the probability that a randomly selected worker works in either the mall or the factory? What is the probability that they work in neither place? What assumptions did you make?
Homework Answers
n(mall) = 65
n(factory) = 30
n(mall or factor)' = 150 - 95 = 55
P(mall or factory) = (65 + 30)/150 = 95/150 = 0.6333
Here the assumption made is that no worker is working at both mall
and factory.
P(neither place) = 55/150 = 0.3667
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