The following table provides a frequency distribution for the number of rooms in this country’s housing units. The frequencies are in thousands.

Rooms No. of units 1 570 2 1,424 3 10,949 4 23,362 5 27,938 6 24,609 7 14,668 8+ 17,211 A = event that the unit has at most 4 rooms B = event that the unit has at least 2 rooms C = event that the unit has between 5 and 7 rooms, inclusive D = event that the unit has more than 7 rooms

a. Determine the number of outcomes (housing units) that constitute the event (not A).

b. Determine the number of outcomes (housing units) that constitute the event (A & B).

c. Determine the number of outcomes (housing units) that constitute the event (C or D).