The cells in Section 6.4, Exercise 31, where
Pr(cell is 0 day old) = 0.4
Pr(cell is 1 day old) = 0.3
Pr(cell is 2 days old) = 0.2
Pr(cell is 3 days old) = 0.1.
Draw histograms of the distributions of cell age from the assumptions in the earlier problem. Find and graph the cumulative distribution.