Harold measures the heights in inches of the new plants that are growing in his greenhouse. He records the lengths shown below and wants to plot them on a line plot. 19.5, 21.5, 18.0, 19.5, 19.25, 19.5, 21.0, 18.25, 20.5, 18.75, 19.0, 19.0 ,19.25,22.0 Use the drop-down menus to complete the following sentences about the line plot. The line plot has dots plotted on it. The least value plotted on the line plot is . The greatest value plotted on the line plot is . The height of inches occurs the most often.