QUESTION IMAGE
Question
- what is the adjusted probability after drawing an ace from a deck and then drawing another ace?
a. $\frac{1}{13}$
b. $\frac{4}{13}$
c. $\frac{1}{17}$
d. $\frac{1}{11}$
Step1: Determine the total number of cards and aces initially
A standard deck has \(52\) cards and \(4\) aces.
Step2: Calculate the probability of drawing the first ace
The probability of drawing the first ace is \(\frac{4}{52}=\frac{1}{13}\).
Step3: Calculate the probability of drawing the second ace
After drawing one ace, there are \(51\) cards left and \(3\) aces left. So the probability of drawing the second ace is \(\frac{3}{51}=\frac{1}{17}\).
Step4: Calculate the combined probability
Using the multiplication rule for dependent events \(P(A\cap B)=P(A)\times P(B|A)\), the combined probability is \(\frac{4}{52}\times\frac{3}{51}=\frac{12}{2652}=\frac{1}{221}\). But wait, maybe there's a mis - understanding. If we consider the adjusted probability (maybe conditional probability in a different sense, but if we assume the problem is about the probability of two aces in a row):
Another way: The number of ways to choose 2 aces out of 4 aces is \(C(4,2)=\frac{4!}{2!(4 - 2)!}=\frac{4\times3}{2\times1}=6\). The number of ways to choose 2 cards out of 52 cards is \(C(52,2)=\frac{52!}{2!(52 - 2)!}=\frac{52\times51}{2\times1} = 1326\). The probability \(P=\frac{C(4,2)}{C(52,2)}=\frac{6}{1326}=\frac{1}{221}\). But if we assume the problem is a simple conditional probability (after the first ace is drawn, what is the probability of the second ace):
After drawing one ace (first draw), there are 51 cards left and 3 aces left. So the probability is \(\frac{3}{51}=\frac{1}{17}\)
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a. \(\frac{1}{17}\)