Question

PLEASE PLEASE PLEASE HELP!!!!!
Two number cubes are thrown twice. What is the probability of getting a sum hat is a prime number less than 6 on both throws?
Calculus I can do, but stats . . . nope.

Answer 1

What are the primes under 6?

Answer 2

2, 3, and 5

Answer 3

So you have two dice, in how many ways can those dice show up those number?

Answer 4

there are 7 different combinations if you pay attention to which dice has which number -- if you do not pay attention to that detail, there are 4 combos

Answer 5

Alright. you are almost there. How many different results can you have when you throw the dice?

Answer 6

The probability is the number of desired results divided by the total possible results.

Answer 7

since you are throwing two dice, would the total possible results be 12?

Answer 8

Just checking the desired combinations:
1+1
1+2
2+1
1+4
4+1
2+3
3+2

Answer 9

that's what I've got

Answer 10

The total possible results are 6 different numbers on the first dice TIMES 6 different numbers on the second, so its 36. The probability is 7/36 or 0.194