Question

In a certain town, 40% residents have computers, 25% have intemet connections and 15% have both computer and internet connection. A resident is selected at random from the town.
(1) If he has a computer, then what is the probability that he has internet connection also?
(2) If he has an internet connection, then determine the probability that he does not have a computer.

Answer 1

Answer:

3/8

2/5

Step-by-step explanation:

40% residents have computers,

25% have internet connections and

15% have both computer and internet connection.

only computer = 25 % resident

only internet = 10%

If he has a computer, then  the probability that he has internet connection also =  both computer and internet connection/computers =  15/40  = 3/8

If he has an internet connection, then  the probability that he does not have a computer = only internet / Internet  = 10/25  = 2/5