Damn and I thought I was getting better at probability. Anyone care to help me on this as well. Ive tried rearranging the conditional probability formula thing but don't seem to be getting anywhere
Damn and I thought I was getting better at probability. Anyone care to help me on this as well. Ive tried rearranging the conditional probability formula thing but don't seem to be getting anywhere
I've got to the answer, but that took me about 20 minutes at least! That is one bloody difficult question, I'll tell you that. We're not allowed to give answers here, but I'll give you a few clues that helped me.
P(A) = P(B intersection A) / P(B | A) = 3 / 40 x 4 / 1 = 12 / 40
I know I'm wrong, but I can't think of any other way of doing it. Hopefully, this working isn't far off (it's 11pm and I'm shattered), and may prove useful in working out the answer.
P(A) = P(B intersection A) / P(B | A) = 3 / 40 x 4 / 1 = 12 / 40
I know I'm wrong, but I can't think of any other way of doing it. Hopefully, this working isn't far off (it's 11pm and I'm shattered), and may prove useful in working out the answer.
Just a word of warning to everyone: if you can't do this, don't worry. This is a million times more difficult than anything that could come up in an S1 paper.