The box plot represents the number of tickets sold for a school dance. Tickets Sold for a Dance 11 12 13 14 15 16 17 18 19 20 Number of Tickets Sold 21 23 22 23 23 225 24 25 Which of the following is the appropriate measure of variability for the data, and what is its value? The IQR is the best measure of variability, and it equals 3. The range is the best measure of variability, and it equals 12. The IQR is the best measure of variability, and it equals 12. The range is the best measure of variability, and it equals 3.