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Mathematics 10 Online
OpenStudy (anonymous):

help please.

OpenStudy (anonymous):

You draw one card from a shuffled standard deck of cards (cards are in four suits —red diamonds, red hearts, black clubs, and black spades— and are numbered 2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q, K, A). a) What is the probability of drawing a red card? b) What is the probability of drawing a queen? c) What is the probability of drawing a red queen? d) What is the probability of drawing a queen given that you drew a face card (face cards are jacks, queens, and kings)?

OpenStudy (kc_kennylau):

You don't just post the questions

OpenStudy (kc_kennylau):

You tell us where you are stuck at and your attempts so that we can effectively help you

OpenStudy (anonymous):

i dont even understand what it means when it says suits?

OpenStudy (kc_kennylau):

Have you every played pokers?

OpenStudy (kc_kennylau):

ever*

OpenStudy (kc_kennylau):

Cards come in different suits: spades, diamonds, clubs and hearts

OpenStudy (kc_kennylau):

Diamonds and hearts are red, spades and clubs are black

OpenStudy (anonymous):

i understand that

OpenStudy (kc_kennylau):

There are 52 cards in poker

OpenStudy (kc_kennylau):

You draw one card from the 52 cards

OpenStudy (anonymous):

so how many red cards are in a deck?

OpenStudy (kc_kennylau):

26

OpenStudy (anonymous):

so 26/52 or .5 50%?

OpenStudy (kc_kennylau):

The three presentations are all correct

OpenStudy (anonymous):

okay thank you. so how many queens are in a deck?

OpenStudy (kc_kennylau):

4

OpenStudy (anonymous):

i think i understand would that be as easy as 4/52 or .07?

OpenStudy (kc_kennylau):

Yes it's as easy as that

OpenStudy (anonymous):

help with d please?

OpenStudy (anonymous):

i dont understand it

OpenStudy (kc_kennylau):

That means

OpenStudy (kc_kennylau):

Out of the face cards, what is the probability of drawing a queen?

OpenStudy (anonymous):

4/16?

OpenStudy (kc_kennylau):

How many face cards are there

OpenStudy (anonymous):

16

OpenStudy (kc_kennylau):

How did you get that

OpenStudy (anonymous):

if there is 4 queens that means theres is 4 aces 4 kings 4 jacks

OpenStudy (kc_kennylau):

Aces are not face cards

OpenStudy (anonymous):

so 12?

OpenStudy (anonymous):

i got it thanks

OpenStudy (kc_kennylau):

no problem

OpenStudy (anonymous):

help with another?

OpenStudy (kc_kennylau):

okay

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