Dot Plots & Histograms

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

A histogram is a graphical representation of the distribution of numerical data, using bars to show the frequency of data within specified intervals.

The mode is the value that appears most frequently in the dot plot.

The height of a bar in a histogram represents the frequency of data points within that interval.

The range is found by subtracting the smallest value from the largest value in the data set.

The mean is the average of all data points, calculated by dividing the sum of the values by the number of values.

A histogram is used to visualize the distribution of data and to identify patterns, trends, or outliers.

To read a dot plot, count the number of dots above each value on the number line to determine the frequency of each value.

An interval in a histogram is a range of values that groups data points together for frequency representation.

The greatest frequency is identified by finding the tallest bar in the histogram.