Questions: Two cards are drawn without replacement from a standard deck of 52 playing cards. What is the probability of choosing a king and then, without replacement, another king? Express your answer as a fraction or a decimal number rounded to four decimal places.
Transcript text: Two cards are drawn without replacement from a standard deck of 52 playing cards. What is the probability of choosing a king and then, without replacement, another king? Express your answer as a fraction or a decimal number rounded to four decimal places.
Solution
Solution Steps
Step 1: Determine the probability of drawing the first king
A standard deck of 52 playing cards contains 4 kings. The probability of drawing a king on the first draw is:
\[
P(\text{First King}) = \frac{4}{52} = \frac{1}{13}.
\]
Step 2: Determine the probability of drawing the second king
After drawing the first king, there are now 51 cards left in the deck, and only 3 kings remain. The probability of drawing a second king is:
\[
P(\text{Second King} \mid \text{First King}) = \frac{3}{51} = \frac{1}{17}.
\]
Step 3: Calculate the combined probability
The combined probability of both events happening in sequence (drawing a king and then another king) is the product of the individual probabilities:
\[
P(\text{First King and Second King}) = P(\text{First King}) \times P(\text{Second King} \mid \text{First King}) = \frac{1}{13} \times \frac{1}{17} = \frac{1}{221}.
\]
Final Answer
The probability of drawing two kings in a row without replacement is:
\[
\boxed{\frac{1}{221} \approx 0.0045}.
\]