a) how many intervals are in the frequency table? b) what is the interval width for your frequency tablec) what is the sum of p(100)d) what is the sum of the proportions (p)

A Researcher was interested in determining if motorists in Ottawa comply with the 30 km/hr school zone speed limit. One afternoon at the end of the school day, the researcher sat for 15 minutes as students were leaving one school in Ottawa and clocked the speed of cars travelling through the zone. The following are the speeds of this sample of cars clocked by radar on this particular afternoon. Construct a frequency table using the following set of data: 42 31 67 45 62 49 65 69 46 63 43 44 58 66 59 34 54 32 61 60