Deaths by legal intervention refers to injuries inflicted by law-enforcement agents in the course of arresting or attempting to arrest lawbreakers, suppressing disturbances, maintaining order, and other legal action (including legal execution). In 2006, 174 such deaths occurred in 16 states in the United States. The following frequency polygon represents these deaths by age.

(a) What is the class width? How many classes are represented in the graph?

(b) What is the midpoint of the first class? What are the lower and upper limits of the first class?

(c) What is the midpoint of the last class? What are the lower and upper limits of the last class?

(d) Which age group had 35 deaths due to legal intervention?

(e) Which two age groups have the highest number of deaths due to legal intervention? Estimate the number of deaths for these age groups.

(f) Estimate the relative frequency for the class 20–29.

Transcribed Image Text:

U.S. Deaths by Legal Intervention 50 45 - 40 35 - 30 25 - 20 - 15 10- 5- -5 5 15 25 35 45 55 65 75 85 95 Age (years) Number of Deaths