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4. Four marbles are drawn from a bag containing six green and five purple marbles. a) What is the probability that all four marbles are

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4. Four marbles are drawn from a bag containing six green and five purple marbles. a) What is the probability that all four marbles are purple i) if the marble is replaced after each draw? ii) if the marbles are not replaced? b) Explain the difference in the results.(four marks)

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