At a store, customers are randomly selected to participate in a survey.
On Friday, there were 500 customers at the store. Of those, 90 were
selected to participate in the survey. On Saturday, the store manager
wants 126 people to participate in the survey.
Part A: If the probability of being selected to participate in the survey
on Saturday is the same as it was on Friday, how many total
customers must enter the store on Saturday?
Part B: If 25% of the customers who completed the survey were
female, how many total females completed the survey?