1spykay

I understand that this is a conveinent sample that was taken from our classmates.
 * Hours || Frequency ||
 * 0-3 || 9 ||
 * 4-7 || 6 ||
 * 8-11 || 4 ||
 * 12-15 || 8 ||
 * 16-19 || 1 ||
 * 20-23 || 2 ||