Answer to Question #164329 in Statistics and Probability for Mariana Morales Zuleta

Question #164329

a standard deck of cards contains 52 cards. One card is selected from the deck.

​(a)

Compute the probability of randomly selecting a seven or three.

​(b)

Compute the probability of randomly selecting a seven or three or jack.

​(c)

Compute the probability of randomly selecting a nine or diamond




1
Expert's answer
2021-02-24T07:38:38-0500

(a) P(seven or three) = P(seven) + P(three)

=452+452=852=213=0.154= \frac{4}{52} + \frac{4}{52} \\ = \frac{8}{52} \\ = \frac{2}{13} \\ = 0.154

(b) P(seven or three or jack) = P(seven) + P(three) + P(jack)

=452+452+452=1252=313=0.230= \frac{4}{52} + \frac{4}{52} + \frac{4}{52} \\ = \frac{12}{52} \\ = \frac{3}{13} \\ = 0.230

(c) P(nine or diamond) = P(nine) + P(diamond) – P(nine \cap diamond)

=452+1352152=413=0.307= \frac{4}{52} + \frac{13}{52} - \frac{1}{52} \\ = \frac{4}{13} \\ = 0.307


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