The table below shows data from a survey about the amount of time students spend doing homework each week. The students were either in college or in high school: High Low Q1 Q3 IQR Median Mean σ College 50 6 8.5 17 8.5 12 15.4 11.7 High School 18 3 4.5 15 10.5 11 10.5 5.8 Which of the choices below best describes how to measure the spread of this data? (Hint: Use the minimum and maximum values to check for outliers.) (2 points)