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1. Phones. Recent research suggests that 43% of Americans have a home phone, 90% have a...

1. Phones. Recent research suggests that 43% of Americans have a home phone, 90% have a cell phone, and 36% have both a landline and a cell phone.

What is the probability that a randomly selected American has:

a. A home or cell phone?

b. Neither a home phone nor a cell phone?

c. A cell phone but no home phone?

Math   Statistics-And-Probability   
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