Refer to Exercise 4.19.
In E 4.19
The U.S. Census Bureau publishes data on housing units in American Housing Survey for the United States. The following table provides a frequency distribution for the number of rooms in U.S. housing units. The frequencies are in thousands.
Rooms ______________________No. of units
1 ................................... 601
2 ................................... 1,404
3 ................................... 11,433
4 ................................... 23,636
5 ................................... 30,440
6 ................................... 27,779
7 ................................... 17,868
8+ .................................. 19,257
a. Which, if any, of the events in parts (a)-(e) are certain? impossible?
b. Determine the probability of each event identified in part (a).