2.62 Create

(a) a frequency table of the interrequest time data on page 29 using the intervals [0, 2,500), [2,500, 5,000), [5,000, 10,000), [10,000, 20,000), [20,000, 40,000), [40,000, 60,000), [60,000, 80,000), where the left-hand endpoint is included but the right-hand endpoint is not

(b) a histogram using the frequency table in part

(a) (Note that the intervals are unequal, so make the height of the rectangle equal to relative frequency divided by width.)