518rosand

My data was collected using _______ sampling by asking classmates the question, "How many pairs of shoes do you have?"
 * Pairs of Shoes || Frequency ||
 * 0-4 || 8 ||
 * 5-9 || 9 ||
 * 10-14 || 7 ||
 * 15-19 || 2 ||
 * 20-24 || 1 ||
 * 25-29 || 0 ||
 * 30-34 || 1 ||
 * 35-39 || 0 ||
 * 40-44 || 2 ||