What are the lowest and highest possible pulse rates that could be

What are the lowest and highest possible pulse rates that could be included in the frequency table?

Most Appropriate Display. Exercises describe data sets but do not give actual data. For each data set, describe the data as qualitative or quantitative, and then state the type of graphic that you believe would be most appropriate for displaying the data, if they were available. 

Explain your choice

Pulse Rates of Females. In Exercises refer to the following frequency table of pulse rates of a sample of females.