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This exercise assumes familiarity with counting arguments and probability. Kent's Tents has four red tents and three...

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Basic Math

This exercise assumes familiarity with counting arguments andprobability.

Kent's Tents has four red tents and three green tents in stock.Karin selects four of them at random. Let X be the numberof red tents she selects. Give the probability distribution. (Enteryour probabilities as fractions.)

x1234

P(X = x)

Find

P(X ? 2).

(Enter your probability as a fraction.)

P(X ? 2) =

Answer & Explanation Solved by verified expert
4.5 Ratings (764 Votes)
Number of ways in which r items can be selected from n availableitems nCr nr x nrTotal number of tents 4 3 7Number of ways in which 4 tents can be selected    See Answer
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