SOLUTION: If two standard dice are rolled, what is the probability that the sum of the numbers landing face up is 4? * plz, explain it step by step. THX! Answer choices: a.)1/2 b.)3/8

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: If two standard dice are rolled, what is the probability that the sum of the numbers landing face up is 4? * plz, explain it step by step. THX! Answer choices: a.)1/2 b.)3/8       Log On


   



Question 981769: If two standard dice are rolled, what is the probability that the sum of the numbers landing face up is 4? * plz, explain it step by step. THX!
Answer choices:
a.)1/2
b.)3/8
c.)1/12
d.)1/9

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Look at all possibilities
(1,1) (1,2) . . . (1,6)
.
.
.
.
(6,1) (6,2) . . . (6,6)
So there are 36 possible outcomes.
Of this there are 3 that will sum to 4.
(1,3)
(2,2)
(3,1)
So,
P=3%2F36=1%2F12