Probability question

[151AND8TH]

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I guess this is an easy question, yet I dont quite get it......

what is the probability of getting a 5 and a 6 in a dice game playing with 2 dice?

I thought it would be (1/6)(1/6) but its not...

also, could I use the nPr or the nCr equation for this problem?

 

[komodo]

is the answer 1/18?

 

[151AND8TH]

Yes it is 1/18... which equation did you use to figure it out?

 

[komodo]

There are two ways of getting a 5 and a 6

1) 5 for the first and a 6 on the second or
2) 6 on the first and a 5 on the second

so if u do that math u get an equation like this:

(1/6)(1/6) + (1/6)(1/6)= 1/18


we multiply because we want both a 5 and a 6
we add these because these are two separate scenarios (they cant happen at the same time)

I hope that made sense.