I cannot find the answer about playing cards for statistics!!!
Whenever I try to find how many of each type of card there is, I find that there is 13 of spades, hearts, diamonds, and clover. But what about ace, kings, queens, and the other types?
@OOOPS
@franzmller682
@alyssa_fields50
@veronica.montanez
i dont understand
I cannot find how many of each type of playing cards there are. I need it for statistics
could u help me on a question?
post the original problem, please
Jim picked a card from a standard deck, looked at it, and then put it back. He then picked a second card. What is the probability that Jim picked a heart or an ace on either pick?
I would know how to solve these, except I do not know how many of each type of cards there.
I know that the formula is p(a U b) = p(a) + p(b) - p(a n b)
The picks are independently, right?
Yes
for the first time: for a heart, we have 13 hearts on the deck, right? so the probability of the heart is 13/52, ok?
ok
and your next problem is OR, that is the probability of an Ace is 4/52, ok?
right
@GreatMath123 http://statistics.about.com/od/ProbHelpandTutorials/a/standard-deck-of-cards.htm
so, for the first time, we have the probability of heart OR ace is (13/52)*(4/52) ,ok?
Wouldn't that be the probability for heart AND ace
It's another topic!! AND is both happen at the same time, right? and you have only 1 Ace which is heart, right?
and the probability to pick that card is 1/52, right?
I thought that there were four aces, so it should be 4/52
you have 4 aces but only 1 is heart ace, right?
Oh, now I understand
Back to your problem, it is just for the first time. the second pick is the same since you put the card back. Hence the probability is just *2
I figured it out, the answer is 16/52 because 13/52 + 4/52 - 1/52 = 16/52 is this correct?
The real question I had was the format of playing cards, and now I understand. I always thought that ace and heart were separate, but once I understood the format of cards I figured out how to do the problem.
you have to multiply to 2, because you have 2 picks
multiply what by 2?
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