offered employment. [3 marks) (b) There are three bags that each contains 100 marbles: • Bag 1 has 75 red and 25 blue ma
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offered employment. [3 marks) (b) There are three bags that each contains 100 marbles: • Bag 1 has 75 red and 25 blue ma
offered employment. [3 marks) (b) There are three bags that each contains 100 marbles: • Bag 1 has 75 red and 25 blue marbles; • Bag 2 has 60 red and 40 blue marbles; • Bag 3 has 45 red and 55 blue marbles. One of the bags is selected at random and then pick a marble from the selected bag, also at random. Suppose that the chosen marble is red. What is the probability that Bag 1 was selected? [5 marks]
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