Mathematics for IGCSE & O level - Probability (Section 6 - No. 38)
In a survey of 100 people, 60 like cats and 30 like dogs. If liking cats and dogs is independent, what is the probability a person likes both cats and dogs?
0.9
0.18
0.3
0.6
설명
Assuming the events are independent. P(Cat and Dog) = P(Cat) * P(Dog) = (60/100)*(30/100) = 0.18