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You pick a card at random. Without putting the first card back, you pick a second card at random.4567What is the probability of picking an even number and then picking an even number?Simplify your answer and write it as a fraction or whole number.

You pick a card at random. Without putting the first card back, you pick a second-example-1
User Cybran
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1 Answer

19 votes
19 votes

Given:

4 5 6 7

Given that you picked a card at random, without replacement, you then pick a second card at random.

Let's find the probability of picking an even number and then picking an even number.

Number of possible events = 4

Number of even numbers = 4, 6, ==> 2 even numbers.

Hence, to find the probability, we have:


\begin{gathered} P=(2)/(4)*(1)/(3) \\ \\ P=(2*1)/(4*3) \\ \\ P=(2)/(12)=(1)/(6) \end{gathered}

Therefore, the probability of picking an even number and then picking an even number is 1/6.

ANSWER:


(1)/(6)

User Rob Agar
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