Engineering Board Exam Reviewer · Basic Probability · hard
Two cards are drawn without replacement from a standard deck. What is the probability that the second card is an ace?
- 1/17
- 1/13
- 4/51
- 1/12
Answer
B. 1/13
Solution
By symmetry, the second card is equally likely to be any of the 52 cards, so P=4/52= 113. (Check: 452· 351+48/52· 451=204/2652= 113.)
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