Dot Plots & Box Plots

A dot plot is a statistical chart that consists of dots plotted on a number line, representing the frequency of data points.

To find the mean, add all the numbers in the data set together and then divide by the total number of values.

The mode is the value that appears most frequently in a data set.

A box plot is a graphical representation of data that shows the distribution through five summary statistics: minimum, first quartile, median, third quartile, and maximum.

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

The first quartile (Q1) is the median of the lower half of a data set, representing the 25th percentile.

The third quartile (Q3) is the median of the upper half of a data set, representing the 75th percentile.

A box plot shows the spread and center of a data set, indicating the median, quartiles, and potential outliers.

If a data set has no mode, it means that no number appears more than once.

Outliers in a box plot are typically represented as individual points that fall outside the whiskers of the box.