Canadian reportable accidents. Accidents in Canada involving dangerous goods must be reported to the government and are recorded by Statistics Canada. Set out below is a summary of the number of such accidents in four selected provinces during 2016:

Road Rail Air Facility Quebec 11 0 0 14 Ontario 15 4 1 22 Alberta 41 0 1 114 British Columbia 15 0 0 13 Source: Statistics Canada, CANSIM Table 38100253, Reportable Dangerous Goods Accidents, Copyright © 2012. Reproduced and distributed on an “as is” basis with the permission of Statistics Canada.

a) Complete the table by calculating the marginal distributions for rows and columns.

b) Find the conditional distribution for Quebec.

c) Find the conditional distribution for Alberta.

d) Create a graph that compares the conditional distributions for Road, Rail, Air, and Facility. LO ➊, ➋