00:01
There are given two z -scores here.
00:03
So the first z -score, which is 0 .75, and the second z -score, this is 1 .6.
00:09
If there's a z -score, that means we have to use the standard normal distribution.
00:13
And for this distribution, the mean value denoted by mu should be zero, and the standard deviation, which is denoted by sigma, should be one.
00:22
So we can define the random variable z, normal distributor, so the mean is zero and the standard deviation is one.
00:27
So we just try to find the z -value between those two numbers, which are 0 .75 and 1 .6.
00:35
Let's get this area here.
00:36
Let me draw the distribution here.
00:38
We can easily understand this is the normal distribution...