Probability Question for Statistics

Question

70% like chocolate ice cream, 40% like strawberry ice cream, and 30% like both. What’s the probability that a randomly selected middle school student likes chocolate ice cream, given that they like strawberry ice cream?

Answer 1

S = like strawberry ice cream P(S) = 0.4

C = like chocolate ice cream P(C) = 0.7

P(S and C) = 0.3

Applying Conditional Probability Rule:

P(C|S) = P(S and C)/P(S) = 0.3/0.4 = 0.75