# Thread: Proabability With Test Questions

1. ## Proabability With Test Questions

I don't completely know how to set this problem up. The question is:
An exam has only three true and false questions, the probability that you know the first question is 67%, the probability that you know the second question is 57% and the probability that you know the last question is 37%.
What is the probability that you get all three correct?

This is for a college class, but I think it be easier than I think it is.

2. Originally Posted by Artemis33
I don't completely know how to set this problem up. The question is:
An exam has only three true and false questions, the probability that you know the first question is 67%, the probability that you know the second question is 57% and the probability that you know the last question is 37%.
What is the probability that you get all three correct?

This is for a college class, but I think it be easier than I think it is.
Assuming independence, (0.67)(0.57)(0.37) = ....