what is the answer

Below are the times (in days) it takes for a sample of 16 customers from Jack's computer store to pay their invoices. 19, 15, 43, 39, 35, 31, 38, 38, 34, 34, 34, 30, 30, 26, 26, 21 Send data to calculator Draw the histogram for these data using an initial class boundary of 14.5 and a class width of 7. Note that you can add or remove classes from the figure. Label each class with its endpoints. Frequency 8 - X ? 4- w 0 0 0 0 E..... Time (in days)