I don’t know how to do this and then we’re online can someone give me the answers ?

1. 80.64 cm
2. a). 78.54 b). 201.6
3. 140 m

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.