00:01
We have been given a stem and leaf plot and we want to find the range of the data set.
00:06
So what is a range? so looking at this data, the range of a dataset is the largest value, x max, minus the smallest value x -min.
00:21
So how can we find the minimum and the maximum of a stem and leaf plot? so if you look at the left -hand side of the line, you can see the the stem.
00:35
So the smallest stem we have here is a 1.
00:38
This means it's something in the 10s, so from 10 up to 19.
00:44
And then if we look, okay, so we don't actually have any ones, we do have 4, it looks like.
00:51
Oh no, we do have a 1, 1 followed by a 4.
00:54
So this represents 14.
00:57
The next stem, we also have a 5 for a 15.
01:00
The next stem is a 2, which goes 6, 6.
01:04
6, 7, 8, 9.
01:07
This represents 6 data points...