SOLUTION: A survey of a city's residents shows that 26% have an IPhone, 39% have an iPad, and 48% have an iPhone or an iPad a) What percent of the city residents have an iPhone and an i

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Question 1008085: A survey of a city's residents shows that 26% have an IPhone, 39% have an iPad, and 48% have an iPhone or an iPad

a) What percent of the city residents have an iPhone and an iPad?
b) What percent of the city residents have neither an iPhone nor an iPad?

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
P(PH)=0.26
P(PA)=0.39
P(PH OR PA)=P of each added minus p(both), which deals with double counting.
P of either=0.48, P (sum)=0.65, 17% are double counted, so it is 0.17 who have both.
P(either)=0.48
p(neither)=0.52