Find the range of the data set represented by the graph.
70
75
80
85
90
95
100
x
A dot plot has a horizontal axis labeled from 70 to 100 in increments of 1. The graph consists of a series of plotted points from left to right. The coordinates of the plotted points are as follows, where the label is listed first and the number of dots is listed second: 74, 1; 75, 2; 77, 1; 78, 4; 82, 1; 86, 2; 87, 4; 90, 2; 91, 2; 94, 1; 95, 1; 96, 1; 97, 1; 100, 1.
The range of the data set is nothing.
?(Simplify your ?answer.)