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Identify the scale of measurement for the following variables:
a. High school ranking __________________.
b. Amount of time to complete a test __________________.
c. Red, blue, orange, green __________________.
d. 10° F., 20° F., 30° F., 40° F __________________.
Regression Line
A line of best fit through a scatter plot of data points that shows the relationship between two variables.
API Gravity Degrees
A measure of how heavy or light a petroleum liquid is compared to water.
Oil Quality
A measure of the physical and chemical properties of oil, indicating its suitability for various uses or its compliance with standards.
Price Per Barrel
The cost of a barrel of commodities like oil, typically used as a benchmark for pricing.
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