The grouping of data into bins (spaced apart by the so-called class interval) plotting the number of members
in each bin versus the bin number. The above histogram shows the number of variates
in bins with class interval 1 for a sample of 100
real variates with a uniform distribution
from 0 and 10. Therefore, bin 1 gives the number of variates in the range 0-1, bin
2 gives the number of variates in the range 1-2, etc. Histograms are implemented
in the Wolfram Language as Histogram[data].