Box Plots Flashcards

A graphical representation of data that shows the minimum, lower quartile, median, upper quartile, and maximum.

The middle value of the data set, represented by a line inside the box.

The value below which 25% of the data lies, represented by the left edge of the box.

The value below which 75% of the data lies, represented by the right edge of the box.

The difference between the upper quartile (Q3) and the lower quartile (Q1). It measures the spread of the middle 50% of the data.

The lines extending from the box to the minimum and maximum values in the data set.

Data points that are significantly higher or lower than the rest of the data. These may be shown as individual points outside the whiskers.

A box plot where the median is in the centre of the box and the whiskers are of equal length, indicating a symmetrical distribution.

A box plot where the median is closer to one end of the box or the whiskers are of unequal length, indicating a skewed distribution.

Box plots can be used to compare two or more data sets by looking at their medians, ranges, and interquartile ranges.