A Venn diagram will be very helpful to solve this. Have you tried drawing one?
A group of students was recently polled about the technology they own.
69 own a cell phone
45 own a computer
23 own an ipod
4 do not own any of the above three items
34 own a cell phone but not a computer nor an ipod
6 own all three, a computer, an iPod, and a cell phone
8 own a cell phone and an ipod but not a computer
2 own only an ipod
a.) How many students were polled?
b.) What is the probability a randomly selected polled student owns a computer?
c.) What is the probability a computer owner also owns an iPod?
d.) What is the probability a randomly selected polled student owns an iPod or a cell phone?
e.) What is the probability a randomly selected polled student owns an ipod and a cell phone?