A standard deck of playing cards contains 52 total cards, 13 of which are "spades". Suppose you and a friend are playing a game.

Question

You can choose any two cards from the deck without looking. If the two cards you choose are both spades, you win!

You pull out one card, and then another, without putting the first one back.

What is the approximate probability that you win? Are your two choices independent or dependent events?

Answers:

a. 6%, Independent

b. 6%, Dependent

c. 11%, independent

d. 11%, Dependent

 

Answer 1

First draw: 1/4

Second draw 12/51

(1/4)(12/51) = 3/51