Question

A random sample of 20 days showed the following # of cardiograms done each day at a testing centre;
45 25 39 5 42 48 35 12 40 16 36 27 37 30 18 22 32 54 44 29

construct a frequency distribution for these data using a lower limit for the first class of 5 and a class width of 10. Indicate the class limits, boundaries, midpoints, frequencies, and cumulative frequencies