The surfaces named contacts #2 and #3 are examples of ____________. 
Definitions:
Average Score
The sum of all the numerical values in a set divided by the number of values in the set, representing the central tendency.
Variable
A component, trait, or aspect that is subject to alteration or modification.
Normally Distributed
A statistical term describing data that forms a bell-shaped curve when plotted, indicating that most values cluster around a central mean and tails off symmetrically towards the extremes.
Standard Deviation
A statistic that measures the dispersion or variability of a dataset relative to its mean, indicating how spread out the data points are.
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