Below are the times (in days) it takes for a sample of customers from Sarah's computer store to pay their invoices. 19,15,43,39,35,31,38,38,38,34,34,30,30,30,26,26

Draw the histogram for these data using an initial class boundary of , an ending class boundary of , and classes of equal width. Note that you can add or remove classes from the figure. Label each class with its endpoints.