00:01
This is a binormal distribution question.
00:02
So the probability of success given here, let's say this is p, which is 11%, so i can write as 0 .11.
00:11
And there are 513 people, so the sample size was given as 513.
00:18
So this is a binomial distribution.
00:21
And so we have to convert everything into the normal distribution.
00:25
And the mean value, which is equal to n times p, which is 5.
00:30
13 times 0 .11.
00:33
This is 513 times 0 .11, which is 513.
00:42
Okay, here we go, which is 56 .53 and the standard deviation, which is equal the square root of, this is n times p times 1 minus p.
00:54
So the standard division denoted by sigma.
00:56
This is 513 times 0 .11 times 1 minus 0 .11 .11.
01:03
Let's get the standard division.
01:05
This square root, this is 513 times .11 and times 1 minus .11, which is .89.
01:13
So the value would be, which is 7 .09.
01:17
So i can define the random variable x, which is normally distributed.
01:20
So this is 56 .506 .43 and 7 .09.
01:27
So these are the given values...