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Mathematics 15 Online
OpenStudy (anonymous):

MEDAL! Determine the probability of drawing a 1 from a regular deck of cards. A. 1/13 B. 1/4 C. 0 D. 1

OpenStudy (anonymous):

Well if there is 13 cards and only 1 , 1 card then there is a probability of getting 1 from 13 so 1/13

OpenStudy (anonymous):

it A correct? @Directrix

OpenStudy (anonymous):

B there is four 1's in a deck

Directrix (directrix):

There are four ones in the deck and 52 cards so the probability would be 4/52. Does 4/52 reduce to 1/13 ? @katlin95

OpenStudy (anonymous):

no it reduces to 1/4, my bads lol

Directrix (directrix):

Wait a minute.

OpenStudy (anonymous):

4/52 = 1/13 ...

OpenStudy (anonymous):

yea thats what I thought loo

OpenStudy (anonymous):

now I mean 4/52 is 1/13

Directrix (directrix):

4/52 = 4/(4*13) = 1/13 @katlin95

OpenStudy (anonymous):

-.-

OpenStudy (anonymous):

There is no need to do 4/52 tho if you know there is a complete deck so just see it as the 13 cards

OpenStudy (anonymous):

from 1 to kings

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