Question

Real Estate ads suggest that 50% of homes for sale have garages, 24% have swimming pools, and 11% have both. If a home for sale has a garage, what's the probability that it has a pool too? Write as a decimal.

Answer 1

Conditional probability.
P=pool
G=garage
Probability of a home having a pool given that it has a garage is
P(P|G)=P(P∩G)/P(G)
=11%/50%
=22%

Answer 2

45