Practice problem
Central Tendency: Mean
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One of the most popular New Year's resolutions is to exercise more than the previous year, causing gym memberships to skyrocket in January. Often memberships allow members to visit the gym as many times as they want per month, with no further payment each time. Gyms actually price their membership fees on the assumption that most people will not use their membership.
Suppose the average number of times a member goes to the gym each week is , and that % of people do not use their membership at all. Among the people who actually use their membership, what is the average number of times that they go to the gym each week?