00:01
All right, so we have here the following set of 30 data points.
00:06
And i went ahead and sorted them from least to greatest because our goal is to find the first quartile, the third quartile, and the intercortile range.
00:16
And your data needs to be sorted in order for you to do that.
00:20
So we'll divide the data into two halves, which is going to be at n equals 15.
00:26
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, after the 15th one.
00:33
That way, there's 15 points in each data set.
00:35
The first quartile is going to be the middle number of the first 15, so that will be the eighth.
00:41
1, 2, 3, 4, 6, 7, 8.
00:44
It's going to be 42.
00:45
That way, there's 7 on the left -hand side of it and 7 on the right -hand side of it...