Monday, August 3, 2015

Scatter Plot Intro

Bivariate Data 1.11 (aka 91036) Internal Three Credits

This counts for numeracy and literacy.  

For this we are going to compare numbers with numbers in a scatterplot (aka scatter graph).  We want for there to be a relationship (this is when the dots form a line).

We start with a question, draw the graph (and stats), write some sentences on what we see and write a conclusion.  This follows the PPDAC idea from the last topic.

Key Words...
Outlier - a dot (representing a person/car/country) that sits outside the line of best fit.
Line of Best Fit - a line best drawn between the dots.  You can hand draw this on.
Tightness - how closely to the line of best fit the dots are.


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