# Thread: Playing card probability question

1. ## Playing card probability question

What is the probability of drawing a red card or a queen from a deck of cards?

Thank you!

2. Originally Posted by PiratePrincess
What is the probability of drawing a red card or a queen from a deck of cards?

Thank you!
Out of 52 cards (no jokers), half of them (26) are red, and 4 are queens. However, 2 of the queens are red anyway so don't count them twice. So there are 28 cards out of 52 that you want.

So the probability is $\displaystyle \frac{28}{52} = \frac{7}{13} \approx 0.538$ or 53.8%

Hope I helped you

3. Originally Posted by PiratePrincess
What is the probability of drawing a red card or a queen from a deck of cards?

Thank you!
Hi PiratePrincess,

There are 26 red cards, 2 of which are queens.
There are 4 queens, 2 of which are red.
There are 2 non-red (black) queens.

The probability is the sum of the probabilities of drawing a red card and the probability of drawing a black queen.
Or it is the probability of drawing a red queen subtracted from the sum of the probability of drawing a red card and the probability of drawing a queen (since both of those contain the probability of drawing a red queen).

4. ## Thanks so much!

I have my first test on probability tonight, wish me luck!

5. Originally Posted by PiratePrincess
I have my first test on probability tonight, wish me luck!
Very best of luck with your test, PiratePrincess!

6. Originally Posted by PiratePrincess