Examlex
Which of the following would most likely be used by a salesperson to make a sales presentation that includes product video clips?
Population Variances
Measures of the spread or distribution of a set of data points in a population, quantifying the degree to which these points differ from the population mean.
Sample Variance
A measure of the dispersion or spread of a set of data points around their mean, calculated as the sum of the squared deviations from the mean, divided by the number of observations minus one.
Equal-variances Test
A statistical test used to determine if two or more samples have equal variances.
Unequal Variances Test
A statistical test used when comparing two groups that do not assume the variances of the groups are equal.
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