A bar graph is a chart that plots data values using rectangular bars or columns that represent the total amount of observations in the data values. In our case, the given colors are in the x-axis and the probability (or relative frequency) in the y-axis.
Since the maximum y-value is 13/28, then the range of the graphs goes from 0 to 13/28 with increments of 1, in order to show all the given values. Then, the bar graph is
The graph title could be Probability vs Colors. The x-axis denotes the Colors and the y-axis the Probability. The increments on the y-axis are in steps of