In a study of schizophrenia, researchers measured the activity of the enzyme monoamine oxidase (MAO) in the blood platelets of 18 patients. The results (expressed as nmoles benzylaldehyde product per 108 platelets) were as follows:13
6.8 8.4 8.7 11.9 14.2 18.8
88 102 115 89 82 79 106
Construct a frequency distribution and display it as a table and as a histogram.