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Mathematics 8 Online
OpenStudy (anonymous):

Suppose you roll a die two times. What is the probability of rolling a 3 both times?

OpenStudy (anonymous):

is it 1/2?

OpenStudy (anonymous):

No

OpenStudy (anonymous):

You have a 1/6 chance each time soooo 2 times would be a 1/12 chance

OpenStudy (anonymous):

Ohh wait 1/36?

OpenStudy (anonymous):

yes 1/36

OpenStudy (kirbykirby):

Yes to 1/36.. you must use the product rule, not the addition rule

OpenStudy (kirbykirby):

P(roll 3 once AND roll 3 a second time) = P(roll 3 once)*P(roll 3 a second time)

OpenStudy (anonymous):

yeah i thought so because a dice = 6 sides x2=12 with 3 different out comes 36

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

lol oops yea 1/36 i added not multiply

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