Internet Exercises

Frequency Distributions Up Close

The Sourcebook of Criminal Justice Statistics

http://www.albany.edu/sourcebook/index.html

Data from over 100 sources about all aspects of the criminal justice system in the United States are available on this site. Frequency distributions are used to present descriptive data on the nature and extent of criminal activity, as well as data on most types of criminal behavior. Visit this website and open the data file on a topic that interests you. Identify the type of frequency(s) used to present data in these tables.

Where Are the Grouped Frequency Distributions?

2001 Sleep in America Poll

http://www.sleepfoundation.org/publications/2001poll.html

The National Sleep Foundation commissioned a national survey to examine sleep habits, sleep experiences, lifestyle, and health issues among adults in the United States. The survey also assessed adults' knowledge or attitudes about sleep, drowsy driving, and the prevalence of sleep problems and disorders among American adults as well as their perceptions of how technology affects sleep patterns. Visit the website and go to the section "Amount of Sleep." Look over the material, tables, and charts. Evaluate the types of frequency used and discuss why grouped frequency distributions are not used to present these data.