SYM-506 Ch. 2

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Decide on the number of classes

2 raised to the power of k is greater than the number of observations.

Histogram

A graph in which the classes are marked on the horizontal axis and the class frequencies on the vertical axis. The class frequencies are represented by the height of the bars, and the bars are drawn adjacent to each other.

Bar chart

A graph that shows qualitative classes on the horizontal axis and the class frequencies on the vertical axis. The class frequencies are proportional to the heights of the bar.

frequency table

A grouping of qualitative data into mutually exclusive and collectively exhaustive classes showing the number of observations in each class.

Frequency Distribution

A grouping of quantitative data into mutually exclusive and collectively exhaustive classes showing the number of observations in each class.

Frequency polygon

Shows the shape of a distribution and is similar to a histogram.


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