In an article in Biometrika, an example is discussed about mine disasters during the period from March 15, 1851, to March, 22, 1962. A dataset has been obtained of 190 recorded time intervals (in...

In an article in Biometrika, an example is discussed about mine disasters during the period from March 15, 1851, to March, 22, 1962. A dataset has been obtained of 190 recorded time intervals (in days) between successive coal mine disasters involving ten or more men killed. The ordered data are listed in Table 15.6.

a.       Compute the height on each bin of the histogram with bins [0, 250], (250, 500],...,(2250, 2500].

b.        Make a sketch of the histogram. Would you view the dataset as being symmetric or skewed?