Answer
a. 0.98
b. 0.02
c. 0.25
Work Step by Step
a. P(home phone or cell phone) = P(home phone) + P(cell phone) - P(home phone and cell phone)
= 0.73 + 0.83 - 0.58
= 0.98
b. P(no home phone and no cell phone) = 1 - P(home phone or cell phone)
= 1 - 0.98
= 0.02
c. P(no home phone and cell phone) = P(cell phone) - P(home phone and cell phone)
= 0.83 - 0.58
=0.25
