Create

(a) a frequency table of the inter-request time data on page 29 using the intervals $[0,2,500)$, $[2,500,5,000),[5,000,10,000),[10,000,20,000)$, $[20,000,40,000), \quad[40,000,60,000), \quad[60,000$, $80,000)$, 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.)