A quartile refers to one of four groups comprising 25% of the sample, each.
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The lowest 25% of values.
lower quartile(this is for math)
If a set of data are ordered by size, then the lower quartile is a value such that a quarter of the data are smaller than it. The upper quartile is a value such that a quarter of the data are larger than it. Interquartile means between the quartiles.
principal(in terms of math)- the amount you borrow or deposit
What are the minimum, lower quartile, median, upper quartile and maximum?What the range and interquartile range are.whether the data ore positvely or negatively skewed.How two (or more) data sets compare in terms of the "average" and spread.