(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

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(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

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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 1
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 1 (20.28 KiB) Viewed 20 times
(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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