Question

Brian rolls a number cube twice. What is the probability that the sum of the 2 rolls is less than 6 given that the first roll is a 3?

one over six

one over three

one over two

two over three

Answer 1

to be less than 6 the second roll must be a 1 or a 2

Answer 2

your point the answer is?

Answer 3

so you only need to find the probability of a 1 or 2 on the second throw

Answer 4

help

Answer 5

probabiilty = number of possible ways to get 1 or 2 / total number of possible results
there are 2 ways you can get 1 or 2 and total possible results equals 6 ( as there are a total of 6 numbers on the cube)

Answer 6

the answer is what then

Answer 7

i've told you the answer - check my last post

Answer 8

/ means divide or over

Answer 9

1/2 yes

Answer 10

no its 2/6 or 1/3