A study reveals that 1% of people are (professional) Athletes; 4% of people are (anabolic) Steroid-users; 82% of (professional) Athletes are (anabolic) Steroid-users. What percent of (anabolic) Steroid-users are (professional) Athletes? How many people are (professional) Athletes and (anabolic) Steroid-users? how many are “being a (professional) Athlete” and “being an (anabolic) Steroid-user”

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