Examlex
________ is a soft pouch of thin polyurethane that is inserted into the vagina before intercourse to prevent conception and protect against STIs.
Formula
A mathematical expression that calculates or represents a relationship between different quantities.
Sum of Squares
The sum of the squared differences between each observation and the overall mean, used in various statistical calculations.
Population Variance
Average squared deviation of a score from the population mean.
Interquartile Range
The difference between the 25th and 75th percentiles of a dataset, representing the middle fifty percent of the data.
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