Each month the Bureau of Labor Statistics reports the number of people (in thousands)employed in the United States by age.The accompanying frequency distribution shows the results for August 2011 (Source: http://data.bls.gov/pdq/SurveyOutputServlet). 
a.Construct a relative frequency distribution.What proportion of workers is between 20 and 24 years old?
B)Construct a cumulative relative frequency distribution.What proportion of workers is younger than 35 years old?
C)Construct a relative frequency histogram.
Definitions:
Arrested Physical Development
A condition or situation where physical growth or development is significantly delayed, stopped, or hindered.
Kinji Imanishi
A Japanese ecologist and anthropologist known for his work on the social structures and behaviors of primates, as well as the theory of species society.
Bonobos
A species of great ape known for its matriarchal society and complex social behaviors, closely related to humans.
Social Cooperation
The act of working together harmoniously for mutual benefit within a group or society.
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