Two cards are drawn from a standard deck without replacement. What is the probability that the first card is a spade and the second card is red? (Round your answer to three decimal places.)

Answer :

Answer:

The answer is 0.123.

Step-by-step explanation:

You want to find the intersection between P(Spade) and P(Red). Knowing that there's no replacement, the probability will be given by the formula:

P(Spade∩Red) = P(Spade)*P(Red/Spade)

P(Spade∩Red) = P(Red)*P(Spade/Red)

Either formula works, but I'm going to choose to work with the first formula.

Therefore:

P(Spade) = [tex]\frac{13}{52}[/tex]

P(Red/Spade) =  [tex]\frac{26}{52-1}[/tex]

So:

P(Spade∩Red) = [tex]\frac{13}{52}[/tex]*[tex]\frac{26}{51}[/tex]= [tex]\frac{13}{102}[/tex] =  [tex]0.123[/tex]

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