Question

A survey showed that, in one city, 20.7% of the population used

product X, 50% use product Y and among users Y, 36.5% use X. Randomized interview
However, a resident in that city, calculate the probability that that person
a) Use both X and Y;
b) Neither X nor Y

Answer 1

Explanation:

a) 0.5*0.365=18.25%

b) (100%-20,7%-50%)=29.3