Algebra 2 help please?
Bobby randomly chooses two cards from a standard deck of cards without replacement A standard deck of cards contains 52 cards. There are 4 aces and 12 face cards in a standard deck of cards. What is the probability of choosing a face card and then an ace?
A) 4/221
B) 3/221
C) 3/169
D) 9/169
回答 (2)
To choose one of the 12 face cards out of 52 cards, probability
= 12/52
= 3/13
After choosing one card, there are 51 cards left.
To choose one the 4 aces out of the 51 cards left, probability
= 4/51
P(choosing a face card and then an ace)
= (3/13) × (4/51)
= (1/13) × (4/17)
= 4/221
The answer: A) 4/221
收錄日期: 2021-04-24 01:10:19
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