Problem

a) Cards are drawn from an ordinary deck and not replaced. Find the probability of drawing first a Jack and second a Queen. Event $A=$ Event $\mathrm{B}=$ drawing first Jack drawing second Queen ڤ ( P( drawing first Jack and second Queen $(\hat{\text { ) }}$ ) $P($ drawing first Jack and second Queen ( $)$ $P($ drawing first Jack and second Queen (2) ) Show work using fraction(s) $=$ Write the answer as a decimal rounded to six decimal places $=$ Write the answer as a percent rounded to two decimal places $=$ $\%$

Solution

Step 1 :The problem is asking for the probability of two dependent events: drawing a Jack first and then drawing a Queen. Since the cards are not replaced, the total number of cards decreases after the first draw, which affects the probability of the second draw.

Step 2 :To solve this, we need to calculate the probability of each event separately and then multiply them together.

Step 3 :The probability of drawing a Jack first is \(\frac{4}{52}\) (since there are 4 Jacks in a deck of 52 cards). After drawing a Jack, there are now 51 cards left in the deck. The probability of drawing a Queen next is \(\frac{4}{51}\) (since there are 4 Queens in the remaining 51 cards).

Step 4 :So, the overall probability is \(\frac{4}{52} \times \frac{4}{51}\).

Step 5 :The result from the calculation is the probability of drawing a Jack first and then a Queen from a deck of cards without replacement.

Step 6 :Final Answer: The probability of drawing first a Jack and then a Queen from a deck of cards without replacement is approximately \(\boxed{0.006033}\).

From Solvely APP
Source: https://solvelyapp.com/problems/18569/

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