Madeline surveyed her classmates to find out how many pairs of shoes they own. Her data is displayed below. How many students did she include in her survey? A bar graph titled how many shoes do you own question mark has pairs of shoes owned on the x-axis and number of students on the y-axis. 4 students own 1 to 3; 7 own 4 to 5; 5 own 6 to 9; 2 own 10 to 12; 0 own 13 to 15; 1 owns 16 to 18. 5 6 18 19