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(a) A sociologist conducted a study of students to determine how many of each sex smoke marijuana. The resultsire given in the following table. Habit

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(a) A sociologist conducted a study of students to determine how many of each sex smoke marijuana. The resultsire given in the following table. Habit - - 20 as (i) Find the probability that a randomly selected smoker is a female (1 mark) (ii) Are the events 'the male school' and 'do not smoke\" independent? State your reason

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