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marigirl
 one year ago
when four dice are thrown (each numbered from 1 to 6), calculate the probability that all the numbers facing up are different .
where do i start??
marigirl
 one year ago
when four dice are thrown (each numbered from 1 to 6), calculate the probability that all the numbers facing up are different . where do i start??

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0interesting question.thanks for posting,,.needs an interpretation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you start with the fact there are 4 dice

marigirl
 one year ago
Best ResponseYou've already chosen the best response.0i was looking at all possible outcomes, 6*5*4*3*2*1=720 for each dice

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0understand where you are coming from, but I dont think that will provide a solution

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0consider the first dice. it has 6 possible alternatives.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Now, once the first possiblity is chosen there are 5 possible alternatives for the next 3 dice

marigirl
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438900477187:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Now you've got it!... So what is the overall probability?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it seems you multiplied the individual probabilites?

marigirl
 one year ago
Best ResponseYou've already chosen the best response.0i multiplied it and got 1/360

marigirl
 one year ago
Best ResponseYou've already chosen the best response.0but that doesnt sound right

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438900871076:dw

marigirl
 one year ago
Best ResponseYou've already chosen the best response.0i mean, we multiply and get 1/360.. then ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what this means is that there is a one in 360 chance that if you roll 4 die that they will all be the same.

marigirl
 one year ago
Best ResponseYou've already chosen the best response.0okay then from here: the total possible outcomes for the 4 dices with 6 sides 6*6*6*6=1296 then the prob that all the numbers facing up are different is: 360/1296
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