Suppose that among the students in a class, 85% will pass the class, 75% attend

Question

Suppose that among the students in a class, 85% will pass the class, 75% attend class regularly, and 70% are students who attend class regularly and will pass the class (i)If we select a student at random from this class, what is the probability that they do not attend class regularly and they will not pass the class; (ii) If a student attends class regularly , what is the probability that they will pass the class?; (iii) if a student does not attend class regularly, what is the probability that they will not pass the class? ; (iv) Are the events "attend regularly" and "pass class" independent? State "yes" or "no" and justify your answer.

Explanation / Answer

(i) 0.1 (ii) 0.933 (iii) 0.4 (iv) NO beacaue P(Pass intersection Regular) is not equal to P(Pass)*P(Regular)...

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