Question

Two fair dice are rolled. What is the probability of....

d) Rolling a sum of 6 or a sum of 8?
e) Rolling a sum of 4 or doubles?
f) Rolling a sum of 4 and doubles
g) Rolling a sum of 2, 4 times in a row?

Answer 1

for each of these choices, determine (# of outcomes that satisfy the requirements) / (total # of outcomes)

ex: for d) determine how many outcomes sum to 6, and how many outcomes sum to 8. then divide by 36, the total # of outcomes for 2 dice rolls.

table for your convenience:

https://qph.fs.quoracdn.net/main-qimg-4ed65463901b1a52eaa328be2345c484