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Statistics

There are 3 short questions on math test. for each question, 1 mark will be awarded for a correct answer and no mark for wrong answer. if the probability that mary correctly answers a question in a test is 2/3, determine the probability that mary correctly answers a question test is 2/3, determine the probability the probability that nary gets 2 marks in the test.

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  1. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

    2/3 * 2/3 * 1/3 = ?

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  2. 4/27

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