Question

7. In a certain city, 80% of the residents like coffee or tea . 30% of them like coffee. 60% percent of them like tea. What is the probability of residents like (a) both? (b) tea but not coffee? (c) only coffee (d) neither tea nor coffee ?

Answer 1

a certain city, 80% of the residents like coffee or tea . 30% of them like coffee. 60% percent of them like tea. What is the probability of residents like (c) only coffee