Devoted to images that illustrate statistical ideas
Monday, March 31, 2014
Here is a well-used cutting board. Every morning it protects the counter top from an errant knife cutting slices of bread for breakfast. The loaf is most often placed so that the cuts fall near the middle of the board, with the knife's blade repeatedly marring the front edge of the cutting board. Less often the cuts continue and extend off to the right or left of the middle. In this contest right seems to win out. This leaves us with a frequency distribution of the knife's marks skewed a bit to the left: the fewest marks along the left of the front edge, the most along the middle, and then a bit fewer marks on the right of the edge. This is a bell-shaped, although somewhat skewed to the left, pattern that we've seen often.