0
$\begingroup$

Two cards are drawn without replacement from an ordinary​ deck, find the probability that the second is not a queen​, given that the first is a queen.

$\endgroup$
  • 1
    $\begingroup$ Welcome to MSE! To ask a good question, please include what you have tried. $\endgroup$ – automaticallyGenerated Jul 5 at 21:17
  • 1
    $\begingroup$ What are your thoughts? If you show what you worked out so far and explain how you got stuck, it could allow for a more useful answer. $\endgroup$ – David K Jul 5 at 21:17
  • $\begingroup$ Can you answer the question if the deck contains four cards, two of which are queens? That should get you started. $\endgroup$ – Ethan Bolker Jul 5 at 21:21
  • $\begingroup$ Please add what you have tried. $\endgroup$ – H Huang Jul 5 at 21:42
0
$\begingroup$

You should be able to do it yourself. There are 51 cards remaining and 3 queens. If the cards are strictly random the probability of a queen is 3/51=1/17, so the probability of not a queen is 16/17.

$\endgroup$
  • $\begingroup$ iam trying to solve ...and your answer 3/51 is incorrect $\endgroup$ – Omar Galal Jul 5 at 21:37
  • $\begingroup$ The OP is trying to find the probability that the second card is NOT a queen. This is the probability that the second card is a queen. $\endgroup$ – Mosquite Jul 5 at 21:46
  • $\begingroup$ thanks brothers >>>the correct answer is 16/17 $\endgroup$ – Omar Galal Jul 5 at 21:48
  • $\begingroup$ Sorry - I misread the question. The answer is now correct. $\endgroup$ – herb steinberg Jul 6 at 1:35

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.