For patient age in DB12,

(a) select intervals for a tally and

(b) tally the data. In tallying,

(c) record the median when 25 data have been tallied, then at 50, at 75, at 100, and at the end. Plot the median depending on the number of data sampled similar to the plot of Fig. 3.2.

Does the median converge to the final median?

(d) Convert the tally into a relative frequency distribution.

(e) Comment on whether the distribution appears by eye to be near normal. If not, in what characteristics does it differ? ( f ) Give a visual estimate (without calculation) of the mean and mode. How do these compare with the final median found in (c)?