Archive for math

Stem-and-Leaf & Box-and-Whisker Plots

Here is a nice overview of stem-and-leaf plots. It also shows you how to set it up if you have two sets of data. We didn’t talk about that particular example. You may find it valuable to look at.

Also, here is a bit on box-and-whisker plots. Read over it, if you need some extra help for Friday’s test or come in for help at lunch.

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Scatterplots

If you want to know a lot more about the different types of scatterplot correlations, this website has it. It explains that if the points are in a linear relationship, it’s called a perfect positive (or negative) correlation. It also shows some examples of the difference between a strong and weak correlation. The data is assigned a value from 0 (no correlation) to 1 (a perfect correlation).

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