Final answer:
The probability that a member of the Avonlea Country Club plays basketball given that they play chess is approximately 89.02%.
Step-by-step explanation:
The question asks for the probability that a randomly selected member of the Avonlea Country Club plays basketball, given that they play chess. We are given two probabilities:
- The probability that a member plays both chess and basketball is 73%.
- The probability that a member plays chess is 82%.
To find the probability that a member plays basketball given they play chess, we use the formula for conditional probability: P(A|B) = P(A ∩ B) / P(B), where A is the event of playing basketball and B is the event of playing chess.
Substituting the given probabilities, we have P(A|B) = 0.73 / 0.82. Simplifying this fraction gives us the probability that a member plays basketball given they play chess.
Thus, P(A|B) = 0.8902 or about 89.02%