Mathematics
7 Online
OpenStudy (asylum15):
- Some basic probability:
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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
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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.
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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?
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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
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OpenStudy (mrnood):
was there more to this question?