00:01
In this question, we are giving some table of data like this.
00:05
So basically, we have some disease, right? magarinine, right? and so you have some participants right in this, and you test the drug probably, i mean, test the sensitivity and specificity of some tests, right? so basically you ask you compute the sensitivity of the test.
00:22
So the sensitivity, i'm going to call it sensitivity.
00:26
And this, of course, is given by the probability of correctly identify the people with a disease, right? and that, of course, if you look at this route, and that's a positive test, right? and actually the positive test only get 121 correct, right? because only this 121 people really get the disease.
00:48
And the fourth positive test, actually, the first positive actually 18.
00:53
So the sensitivity, of course, is given by 112 divided by the total, which is 139, right? so that's the sensitivity...