In Parts A-C of this session, you learned several ways to organize numerical data by forming groups. Grouping is especially useful for wide-ranging data or data measured on the number line. Note 5
In the following activity, you will apply several of the methods you have learned for grouping data to solve a problem about how many hats to order.
Hats are made in a variety of styles and sizes. A merchant must decide what styles to keep in stock and how many of each size to order. At our theoretical hat shop, a unisex "Standard Fit" hat is available in the following sizes:
Are certain hat sizes more common than others? If not, then an equal number of each hat size can be ordered. But if certain sizes are more common, the merchant needs to order larger quantities of the more common sizes.