A college graduate seeks a job as an executive assistant at a large company. The starting salaries of such jobs for 100 large companies is displayed in the cumulative relative frequency histogram below. A histogram titled executive assistants has starting salary (thousands of dollars) on the x-axis and cumulative relative frequency on the y-axis. 35 to 40, 37 percent; 40 to 45, 59 percent; 45 to 50, 80 percent; 50 to 55, 90 percent; 55 to 60, 98 percent; 60 to 65, 100 percent. Which interval contains the median salary? $40,000–$45,000 $45,000–$50,000 $50,000–$55,000 $55,000–$60,000