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The following table presents the purchase totals (in dollars) of a random sample of gasoline purchases at a convenience store.
Construct a frequency histogram using a class width of 10, and using 0 as the lower class limit for the first class.
Sample Variance
The measure of dispersion within a sample data set, indicating how much the sample points deviate from the sample mean.
Confidence Interval
A series of values, calculated from sample measurements, speculated to hold within it the unknown parameter of a population.
Standard Deviation
A measure of the amount of variation or dispersion of a set of values.
Sample Mode
The value that appears most frequently in a given set of data from a sample.
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