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Rise over run
A common saying to determine the slope of a line on a graph
Association
How two variables interact to create a trend in a data set
Cluster
A part of a scatterplot where many data points are plotted closely together
Equator
The central line of latitude. Skin color tends to get darker as people live closer to this line
Line of best fit
A line that represents the general direction of data points in a scatter plot. It can also help us to predict values.
Melanin
A chemical in your body made up of tiny grains that determine the color of your skin
Outlier
A data point that falls far away from other data points in a scatterplot. This data point is unexpected
Slope
How quickly a line of best-fit increases or decreases
y^2-y^1/x^2-x^1
The formula to determine slope using two data points
Validity
When data is considered to be correctly formatted or stored.
Completeness
When a set of data includes all possible values
Uniqueness
When a set of data is free from duplicate data points
X-Axis
The horizontal axis of a scatterplot
Y-Axis
The vertical axis of a scatterplot
Data Point
A single piece of a larger data set
Note 
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