Answer:

-A histogram is an alternative way to display the distribution of a quantitative variable. Histograms are particularly useful for large data sets. A histogram divides the variable values into equal-sized intervals. We can see the number of individuals in each interval.

-Frequency polygons are a graphical device for understanding the shapes of distributions. They serve the same purpose as histograms, but are especially helpful for comparing sets of data. Frequency polygons are also a good choice for displaying cumulative frequency distributions.