Question

Of all the Sunny Club members in a particular city, 25% prefer swimming on weekends and 75% prefer swimming on weekdays. 10% of the members in the city prefer swimming on weekends and are female. 55% of the members in the city prefer swimming on weekdays and are female. What is the probability that a randomly selected club member is female, given that the person prefers swimming on weekends?
Options:
0.19, 0.20, 0.24, 0.40, 0.55

Answer 1

if this is confusing, use actual numbers instead of percents
lets say there are 100 people total
then 25 of them prefer weekends and 75 prefer week days
10 are women and prefer weekdays

Answer 2

0.40?

Answer 3

hold on a second, i think there is something wrong with me or the question

Answer 4

Okay, haha.