Question

What is the probability of rolling a sum of 8 or 5 on a pair of number cubes? a. 5/36 b.2/9 c. 7/324 d. 1/4

Answer 1

This table is worth keeping in My Pictures.

Answer 2

P(rolling a sum of 5) + P(rolling a sum of 8)

Answer 3

\[ P(\text{Rolling 5)} = {\text{number of times you see that number inside the table} \over \text{total numbers(36 in this case)}}\]

Answer 4

Similarly, do the same for rolling 8.

Answer 5

I just love the term "number cubes."

They're really dice, but we don't want young people to turn to a life of gambling.