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Suppose that there are 8 blue credit cards, 6 red credit cards and 4 blue debit...

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Statistics

Suppose that there are 8 blue credit cards, 6 red credit cardsand 4 blue debit cards in a box. It is known that color and cardtype are to be independent when a card is selected at random fromthis box. a) How many red debit cards must be present? b) Supposethat, 6 cards are randomly selected in a row with replacement. Whatis the probability that 2 blue credit cards and 2 blue debit cardsare selected? c) Suppose that, 6 cards are randomly selected in arow without replacement. What is the probability that 2 blue creditcards and 2 blue debit cards are selected?

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a let x no of red debit card for independent Pred debit card Pred credit card no of red debit card no of debit card no of red credit card no of credit card    See Answer
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