Posted by **Jummy** on Monday, November 5, 2007 at 6:37pm.

Rooms NO of units

1 471

2 1470

3 11715

4 23468

5 24476

6 21327

7 13782

8+ 15647

compute the following conditional probablilites directly that is, do not use the conditional probability rule. For a U.S. housing unit selected at random, determine

a. the probability that the unit has exactly four room.

b. the conditional probablility that the unit has exactly four rooms given that it has at least 2 room

c. the conditinal probability that the unit has at most four rooms, given that it has at least two rooms.

d. interpret your answers in parts (a)-(b) in terms of percentages.

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