Reblogged from deutsch29: Mercedes Schneider’s EduBlog
A numeric average is a relative statistic. If I have a set of numeric values and I calculate an average using the set, by definition, some individual values will fall below average, and likely, some will be right on the average. If I remove these below-average and average values, the original average does not remain fixed– and if I average the remaining originally-above-average values, some will newly be below average, and likely, some exactly average.
The truth about the relative nature of averages is apparently lost on Democratic presidential hopeful, Hillary Clinton. On December 22, 2015, Clinton spoke at a high school in Keota, Iowa, where she said, “I wouldn’t keep any school open that wasn’t doing a better-than-average job.” She later equated “better-than-average” with “good.”