Is 15.5 a irrational or rational number? answer asap

15.5 is a rational number because it can be written as a ratio

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.