The following contingency table of frequencies is based on a 5-year study of fire fatalities in Maryland. For purposes of clarity, columns and rows are identified by the letters A€“C and D€“G, respectively.

a. For this table, identify any two events that are mutually exclusive.
b. For this table, identify any two events that intersect.

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Blood Alcohol Level of Victim Age 0.00% 0.01-0.09% >0.10% D 0-19 E 20-39 F 40-59 G 60 or over 142 47 29 47 265 6 155 41 96 77 114 35 89 159 454 30