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Mathematics 9 Online
OpenStudy (anonymous):

cans someone help me ... a personal identification # consists of 4 of the digits 0-9 in any order. if the digits cannot repeat, what is the probability, the nearest thousandths, that the pin number does not include a 0

OpenStudy (anonymous):

number of combinations with no 0 / number of combinations in total (9*8*7*6)/(10*9*8*7) i believe.

OpenStudy (anonymous):

so 0.6? would love to know if im wrong.

OpenStudy (anonymous):

Sounds right.

OpenStudy (anonymous):

Cheers

OpenStudy (anonymous):

lol well the answer choices are a. 0.656 b.0.600 c.0.302 d.0.250

OpenStudy (anonymous):

b obviously

OpenStudy (anonymous):

:)

OpenStudy (istim):

So we have our solution here? Do I distribute the medals everywhere?

OpenStudy (anonymous):

guess so.

OpenStudy (istim):

PEw pew pew.

OpenStudy (anonymous):

wait how do u know which numbers to divide by in the numerator?

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