00:01
In this question we're given a student takes a written test for a private pilot license, and we're given that the probability the student passes the test is 0 .75.
00:12
I'm going to let the event p be the student passes the test, and f, the student fails the test.
00:20
So for probability of event p, the student passed the test, that would be 0 .75.
00:27
And probability for event f, that's when the student fails to test.
00:33
There will be 1 minus the student pass the test, that's 0 .75, and so that would be 0 .25.
00:42
Now in part a, we want to find probability the student passes on the first attempt, so that is just probability of the event p, and that would be 0 .75.
00:55
Now in b, we want to find probability the student passes on the first attempt, so that is just probability of the event p, and that will be 0...