The two box plots in the figure to the right show the starting salaries of a university's first-year graduates in agriculture and engineering. (a) Estimate the range for the starting salaries of agriculture majors. (b) Estimate the interquartile range for the starting salaries of engineering majors. Engineering salaries Agriculture salaries 30 35 40 45 50 55 60 65 70 75 80 Starting salary (in thousands of dollars) (a) The range for the starting salaries of agriculture majors is approximately $ (Round to the nearest thousand as needed.)