A survey on ownership of satellite TV systems shows the following data:

Region

	East	Midwest	Southwest	West	Total
Currently Own	41	36	21	25
Likely to Purchase	191	102	47	121
Neither	477	538	193	325
Total

Complete the table and answer the following: (answers either as fractions or as decimals to 4 decimal places.)

a) What is the probability that someone is likely to purchase a satellite system?

b) What is the probability that someone owns a system and lives in the southwest?

c) Given a person lives in the west, what is the probability that they are likely to purchase a satellite system?

d) Given that someone is likely to purchase a system, what is the probability that they live in the east?