which of the following is the Value of 4 upon 5 to the power of - 9 divided by 4 upon 5 to the power of - 9​

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.

She should use 12/3 to measure