Phones Recent research suggests that 73% of Americans have a home phone, 83% have a cell phone, and 58% of people have both. What is the probability that an American has  a) a home or cell phone?  b)...

Phones Recent research suggests that 73% of Americans have a home phone, 83% have a cell phone, and 58% of people have both. What is the probability that an 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?