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What graph uses relative frequency (y-axis) and class midpoints (x-axis)?
Relative Frequency Polygon
What does cumulative frequency tells us about the frequency in a class?
Gives the number of subjects or data that is included in the classes "less than" a certain value. (Ex. 20 people are less than 6' tall )
The sum of the percentages in a frequency distribution must be very close to ____.
100% (Not 100)
The sum of the relative frequencies (given as decimals) in a frequency distribution must be very close to ___.
1
Which graph consists of bars of equal width and explains numerical data?
Histogram
What is the name for a distribution where all the frequencies are almost equivalent?
Uniform distribution
What diagram uses data as plotted points to show a relationship between two variables?
Scatterplot
Which graph plots data against time?
Time-series graph
A graph that uses dots plotted against a vertical scale to represent data values.
Dotplot
A diagram that separates numerical data into two parts
Stemplot (or stem-and-leaf plot)
Which graph consists of bars of equal width and is used to represent categorical data?
Bar graph (also a multiple bar graph)
A bar graph that uses percentages and categories
Pareto chart
A graph that shows categorical data as pieces of a circle
Pie chart
A graph that uses connected data points to show frequency against class midpoints
Frequency polygon (not relative frequency polygon)
A graph that uses connected data points to show relative frequency against class midpoints
Relative frequency polygon (not frequency polygon)
A graph that uses cumulative frequencies and class boundaries
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