Question

Two number cubes are rolled. What is the probability of each event? Sum is 8. I don't get how to do the work

Answer 1

count how many ways there are to get an eight on two dice (they are dice, not number cubes)
then divide the total by 36, the number of all possible rolls

Answer 2

would you like help counting the ways to get a total of eight?

Answer 3

I got 8/36 but that's not the answer in the book it stated it was 5/36

Answer 4

it is not the number 8 over 36, it is the number of ways to roll an eight

Answer 5

wanna count the ways to roll a total of 8 on two dice?

Answer 6

sure because im lost

Answer 7

ok you have two dice, say one is red, the other blue
we can list the ways to get a total of eight
\[(\color{red}2,\color{blue}6)\] is one way

Answer 8

now lets list them all
\[(\color{red}2,\color{blue}6)\\
(\color{red}3,\color{blue}5)\\
(\color{red}4,\color{blue}4)\\
(\color{red}5,\color{blue}3)\\
(\color{red}6,\color{blue}2)\]

Answer 9

that is where the 5 comes from in the numerator, five ways to get a total of eight

Answer 10

oh I see my mistake I did 2 (4,4)s. Thank you so much for your help

Answer 11

yw
a common mistake, but if you did that you would have got 6 up top