00:01
Goal is to figure out what are the chances of zero medical bills containing errors, given that three out of four builds generally contain errors.
00:13
And we're going to be using what we call a binomial distribution or binomial probability to figure that out.
00:20
We usually use this when we need to figure out a probability of an exact number of successes and an exact number of trials.
00:27
So we're trying to figure out the probability of zero successes in this case.
00:32
So x would be equal to zero.
00:37
And n, the number of trials, there's 10 trials we're going to be working with here.
00:44
Okay, so out of 10, what's the probability of zero of them having errors? and we're going to get, we're going to be using this formula.
00:52
It involves a combination, the probabilities, of course, the probability of success, raised to the power of the number of successes times the probability of failure raised to the power of the number of failures.
01:06
So our x is zero or n is 10 and our p we said three out of four which is the same thing as 0 .75 which means our q probability of failure...