SOLUTION: Show all work A random sample of 250 adults found that 67% of them access the internet at work, 82% of them access the internet at home, and 60% access the internet both at home a

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Question 1141084: Show all work
A random sample of 250 adults found that 67% of them access the internet at work, 82% of them access the internet at home, and 60% access the internet both at home and work. What is the probability that a randomly selected adult will access the internet at home or at work?

Answer by Boreal(15235) About Me  (Show Source):
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OR is P(A)+P(B)-P(A and B)
=0.67+0.82-0.60
=0.89 or 89%