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Mathematics 9 Online
OpenStudy (anonymous):

how many socks would you need to remove from a drawer containing 10 blue socks,15 black socks, and 5 red socks, to insure that you have at least 2 matching socks?

OpenStudy (anonymous):

Please Help Me:)

OpenStudy (bahrom7893):

@amistre64 @satellite73 @estudier

OpenStudy (anonymous):

what do you mean

OpenStudy (anonymous):

by these names

OpenStudy (bahrom7893):

Calling for help.. lol my probability is horrible

OpenStudy (anonymous):

Help

OpenStudy (bahrom7893):

uhmm 10 blue 15 black 5 red Consider the worst case, or the case when you're picking a different sock every time. I just realized this isn't even probabilty.. Sorry for bothering you guys.

OpenStudy (anonymous):

It Okay I just need Help

OpenStudy (bahrom7893):

So if you pick a different sock every time, then, your trials would look like: 1) blue 2) black 3) red 4) This one has to be one of the above colors because there are no others.

OpenStudy (anonymous):

the answer choices are: A.3 b.4 c.16 d.17 e.28

OpenStudy (bahrom7893):

Thus you would need to remove 4 socks

OpenStudy (anonymous):

how?

OpenStudy (anonymous):

Hello???

OpenStudy (bahrom7893):

I just explained: If you pick a different sock every time, then, your trials would look like: 1) blue 2) black 3) red 4) This one has to be one of the above colors because there are no others. So on the fourth trial you have to have the same color.

OpenStudy (anonymous):

OH KAY

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