The marketing department of a sports supply store wants to estimate the percentage of adults in the town who belong to a gym. which statement describes a method that will the marketing department accurately estimate this percentage? a)select the store’s first 20 customers every day for one week, and ask each person whether he or she belongs to a gym. calculate the percentage of the total who say “yes.” b)take a random sample of adults at the local park, and ask each person whether he or she belongs to a gym. calculate the percentage of the total who say “yes.” c)take a random sample of adults in the town, and ask each person whether he or she belongs to a gym. calculate the percentage of the total who say “yes. d)take a random sample of the store’s adult customers, and ask what percentage of their friends belong to a gym. calculate the mean of the responses.