$(12$ points$)$ Suppose you are collecting data from a country like Japan where the government sets the price of health care. Each prefecture in Japan has a different set of prices. Data from $1999$ are displayed in the following table:

Table $2\mathrm{.}12$: Outpatient utilization in Tokyo and Hokkaido, $1999.$

$\backslash$table$[[$Region$,$Outpatient visits,Price$/$visit$],[$Tokyo$,\frac{1\mathrm{.}25}{?}$ month,$20$