Finger Length of Criminals. In 1902, W. R. Macdonell published the article “On Criminal Anthropometry and the Identification of Criminals” (Biometrika,Vol. 1, pp. 177–227). Among other things, the author presented data on the left middle finger length, in centimeters. The following table provides the midpoints and frequencies of the finger-length classes used.

Midpoint Midpoint

(cm) Frequency (cm) Frequency 9.5 1 11.6 691 9.8 4 11.9 509 10.1 24 12.2 306 10.4 67 12.5 131 10.7 193 12.8 63 11.0 417 13.1 16 11.3 575 13.4 3

Use these data and the technology of your choice to assess the normality of middle finger length of criminals by using

a. a histogram.

b. a normal probability plot.