Its of a new acne medication Condition improved 1 No change N Condition worse W c P LON Total Check Clear Used medication M Used

Question

Its of a new acne medication Condition improved 1 No change N Condition worse W c P LON Total Check Clear Used medication M Used placebo L 400 500 400 500 200 500 1500 Let M be the event that a participant used the medication L the event that a participant used the placebo I the event a the participant s condition improved a so on as shown by the letters in the headings Find the relative frequency in each case a P I b E It is not the case that a participant used the medication P E Check Clear Check Clear 1000 d F A participant used the medication or saw their condition improve P F Check Clear Total 900 900 700 2500 GA participant who used the placebo saw no change in their condition

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