Box Plots

A box plot is a graphical representation of a dataset that shows its minimum, first quartile (Q1), median, third quartile (Q3), and maximum values.

The lower quartile (Q1) is the value below which 25% of the data falls.

The upper quartile (Q3) is the value below which 75% of the data falls.

To find the median, arrange the data in ascending order and locate the middle value. If there is an even number of values, average the two middle values.

The maximum value is the largest number in the dataset.

The minimum value is the smallest number in the dataset.

The interquartile range (IQR) is calculated by subtracting the lower quartile (Q1) from the upper quartile (Q3): IQR = Q3 - Q1.

A box plot visually summarizes the distribution of a dataset, highlighting its central tendency and variability.

Outliers are data points that fall outside the range defined by Q1 - 1.5*IQR and Q3 + 1.5*IQR.

The median is represented by the line inside the box of the box plot.