I’m not sure if I’m right but I think you might have to divide the 78% by 7. There’s a website that I like to use as a calculator called Calculator Soup and it help with stuff like fractions, percentages, decimals, ect. Good luck on your homework :)
AB would be {3,6}
Hope that this helps
The easiest way to solve this problem is to make a table, based on 100 total person
Prefer week ends Prefer week days Total
Female 10 55 65
Male 15 <span>20 </span>35
Total 25 75 100
The bold numbers are conclusions. The plain numbers are data.
<span>The probability that a randomly selected club member is female, given that that person prefers swimming on weekends</span> is [10 / 25] = 0.40
Answer: option D. 0.40