Shown here are the number of auto accidents per year for every 1000 people in each of

Question:

Shown here are the number of auto accidents per year for every 1000 people in each of 40 occupations (Knight Ridder Tribune, June 19, 2004):

a. Would you recommend using the standard deviation or the iqr as a measure of variability for this data set?
b. Are there outliers in this data set? If so, which observations are mild outliers? Which are extreme outliers?
c. Draw a modified boxplot for this data set.
d. If you were asked by an insurance company to decide which, if any, occupations should be offered a professional discount on auto insurance, which occupations would you recommend? Explain.