A histogram is a graphical summary that can be created to help us visualize the shape and distribution of our data set. Histograms deal with numeric data sets, in which values are binned, and plotted like a bar graph with consecutive bars touching. We can control the number of bins, which is important for us in visualization. Most histograms fare best when there are somewhere between 5 and 20 bins of data, and really depends on how many data points we have in the set, and how spread out they are. Sometimes, the bin breakout comes naturally (Maybe binning exam scores by letter grade), but other times, there is no clear-cut methodology for it. When we run into these situations, we can play around with the number of bins to try and get the best visualization of our data that we can. Once we create our histogram, we can describe the shape as follows