3. A clerk at a pet store kept track of customers who purchased at least one box of animal treats in one week. The following list shows how many boxes of animal treats those customers purchased throughout the week: (a) Determine the frequency of each interval , , , and . Create a histogram for the data with an appropriate title and labels on each axis using the intervals , , , and . (d) Based on the labeled intervals, what is the highest number of boxes of animal treats that can be recorded? Explain. (e) How many customers purchased boxes of animal treats that week? How many customers purchased more than 10 boxes of animal treats? Explain. (f) How many more customers purchased at least 1 box but fewer than 6 boxes of animal treats compared to those who purchased between 6 and 15 boxes of animal treats? Show or explain your work.