Asked by Elizabeth

What is the probability of getting each of the following on a roll of two standard number cubes?
P(prime number and is divisible by 3)
My teacher got 5.5%, but I don't see how he got it.

Answers

Answered by R_scott
the only prime number divisible by 3 is 3

there are 2 ways to get three with standard dice ... 1,2 and 2,1

2 ways out of 36 possible outcomes (6 times 6)

2/36 = 1/18 = 0.0555...
... this actually rounds to 5.6%
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