AP Statistics: Percentiles, Quartiles, z-Scores (measures of position)

Statisticians often talk about the position of a value, relative to other values in a set of data. The most common measures of position are percentiles, quartiles, and standard scores (aka, z-scores). This video shows how to compute each measure of position, with clear, step-by-step examples. View written lesson here: https://stattrek.com/descriptive-statistics/measures-of-position