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This exercise assumes familiarity with counting arguments and probability (see Probability and Counting Techniques). Kent's Tents...

This exercise assumes familiarity with counting arguments and probability (see Probability and Counting Techniques).

Kent's Tents has five green knapsacks and four yellow ones in stock. Curt selects four of them at random. Let X be the number of green knapsacks he selects. Give the probability distribution. (Enter your probabilities as fractions.)

x 0 1 2 3 4
P(X = x)

Find

P(X ≤ 2).

(Enter your probability as a fraction.)

P(X ≤ 2) =

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