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Stem and Leaf Plot
A graphical representation that shows the first digits of an answer followed by a separated digit.
Time Series Graph
A graph that collects quantitative data over a period of time.
Bar Graph
A chart that displays data with categorical labels.
Pareto Chart
A bar graph arranged in descending order of height.
Pie Chart
A circular chart that displays data in a partitioned format.
Histogram
A bar graph with bars of equal width representing frequency distribution.
Width Formula
The calculation (max-min)/(amount) used to determine the width of data ranges.
Lower Limits
The lower boundaries of a data range.
Upper Limits
The upper boundaries of a data range.
Midpoint
The value that lies in the middle of a range.
Width
The difference between consecutive lower limits in a data set.
Mean
The average of a data set, calculated by dividing the total by the amount.
Median
The middle value of a data set; if there is a tie, the average of the two middle values is taken.
Mode
The number that occurs most frequently in a data set.
Midrange
The average of the maximum and minimum values in a data set.
Frequency Table
A table that shows how common values are within a specific width.
Relative Frequency Table
A table where percentages replace literal amounts to show frequency.
Cumulative Frequency Table
A table that accounts for all previous ranges in a data set.
