0.05
4
16
0.01
1
15
0.09
7
14
0.1
6
12
0.05
5
10
0.06
5
8
0.04
3
5
0.12
8
4
0.085
5
13
0.07
4
11
0.02
3
9
0.07
3
7
0.095
7
6
0.19
9
3
0.03
2
2
0.1
5
1
BAC
Beers
Student
Scatterplots
pIn a scatterplot one axis is used to represent each of the variables, and the data are plotted as points on the graph.
Quantitative data - have two pieces of data per individual and wonder if there is an association between them.  Very important in biology, as we not only want to describe individuals but also understand various things about them. Here for example we plot BAC vs number of beers. Can clearly see that there is a pattern to the data. When you drink more beers you generally have a higher BAC. Dots are arranged in pretty straight line - a linear relationship. And since when one goes up, the other does too, it is a positive linear relationship.  Also see that