The line of symmetry divides a design so that every point on one side of the line a point on the other side of it

S what’s the question?

Is identical to/symmetrical to

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.