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Mathematics 12 Online
OpenStudy (anonymous):

suppose you roll two dice, find the probability of not rolling of sum of 9

OpenStudy (alekos):

that would be 1 - P(sum of 9)

zepdrix (zepdrix):

Hey! Welcome to OpenStudy! :)

OpenStudy (anonymous):

so, it would be..

zepdrix (zepdrix):

how many ways can you roll a 9? :) There are only a few, shouldn't be too hard to count them up

OpenStudy (anonymous):

8/9

OpenStudy (alekos):

well done

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