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Mathematics 7 Online
OpenStudy (asylum15):

- Some basic probability:

OpenStudy (asylum15):

Hey! Just want to clarify some probability answers with you if possible?

OpenStudy (anonymous):

ok go

OpenStudy (asylum15):

Part 1 - If I remove all the kings + jokers from a deck of cards, how many cards are left?

OpenStudy (anonymous):

idk about cards lol mybad

OpenStudy (mrnood):

48

OpenStudy (asylum15):

No problem :)

OpenStudy (asylum15):

I thought the answer was 46 based on a 52 deck? 4 kings + 2 jokers?

OpenStudy (anonymous):

A deck of 52 cards doesnt include the jokers

OpenStudy (mrnood):

52 excludes the jokers. 4 suits A23456789,10,j,Q,K = 13 per suit = 52 @BlackLabel you are not correct

OpenStudy (asylum15):

The question just states, ''from a deck of cards.'' We use 52 however.

OpenStudy (anonymous):

Ohhh true

OpenStudy (asylum15):

Part 2 - How many are red? 13-2 = 11?

OpenStudy (mrnood):

WHY? Half of them are red = all the hearts and diamonds

OpenStudy (asylum15):

26 - 2?

OpenStudy (mrnood):

why the -2?

OpenStudy (asylum15):

Two have been removed already (the kings)

OpenStudy (mrnood):

ther are 48 cards reaming - half are red half black

OpenStudy (asylum15):

Ah, ok.

OpenStudy (asylum15):

Thanks Nood.

OpenStudy (mrnood):

I see - sorry 26-2 is correct - just not my way of seeing it

OpenStudy (mrnood):

was there more to this question?

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