A histogram is used to plot the distribution of a numeric variable. It's the quantitative version of the bar chart. However, rather than plot one bar for each unique numeric value, values are grouped into continuous bins, and one bar for each bin is plotted to depict the number. You can use either Matplotlib or Seaborn to plot the histograms. There is a mild variation in the specifics, such as plotting gaussian-estimation line along with bars in Seabron's distplot(), and the arguments that you can use in either case.