When randomly choosing two cards from a standard deck of cards without replacement, what is the probability of choosing a queen and then a king?
1 Answer
Feb 24, 2016
Well, these events are independent of each other, so we can just find the probabilities individually, then multiply them together.
So, what is the probability of choosing a queen?
There are 4 queens out of a total of 52 cards, so it is simply
or
Now we find the probability of choosing a king
Remember, there is no replacement, so now we have 51 total cards because we removed a queen.
There are still 4 kings in the deck, so our probability is
Now we found both components, just multiply them together
We cannot simplify further, so we are done,.