Examlex
________ are controlled methods of collecting evidence that give people confidence in stating that one factor caused another to happen.
Interval
A type of variable measurement scale that represents ordered categories with equal distances between adjacent categories but no true zero point.
Ratio
A quantitative relationship between two numbers showing how many times the first number contains the second.
Pie Chart
A circular statistical graphic which is divided into slices to illustrate numerical proportion.
Frequency Polygon
A graphical device for understanding the shapes of distributions. They are a type of line graph.
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