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. 2014 Jan 23;11:E12. doi: 10.5888/pcd11.130184

Figure 1.

This density plot graph shows the mean sustainability score for each of the 252 public health programs as points along the X axis (possible range, 1 – 7) and the density (frequency) of those scores on the Y axis (possible range, 0.0–0.4). The line graph starts with the first score of 1.32 (density approximately 0.005); the density of scores slowly increases through the 2’s (density approximately 0.02), then increases more quickly into the 3’s. The scores increase rapidly through the 4’s and peak near 5.3, with a density of approximately 0.39. The slope of the graph rapidly descends through the 6’s and ends with a value of 7.00 and a density of approximately 0.005.

Density plot (frequency) of the variability of Program Sustainability Assessment Tool (PSAT) scores across 252 public health programs participating in tests of the PSAT.