You roll two six-sided dice, one then the other.
Let A = "The first die is a 1 or 4" B = "Sum of the two dice is strictly greater than 7"
What is the $P(B \mid A)$? Give your answer out to two decimal places.
so I worked out that the probability of is :
A is 1/3 B is 5/12
So P(B given A) would be:
number that's 4 and greater than 7/number that first roll is 4
but that would give me 3 which is wrong. So what is the formula for a conditional like this?