Need some help with this.

A survey has been undertaken to determine if there is a relationship between place of residence and type of dwelling. The table presents data from a random sample of 650 households.

Type of Dwelling

Place Owns Home Owns Condo Rents Apartment

Large City 20 100 180

Suburb 120 45 60

Rural 95 25 5

a.)What is the probability that the household lives in a suburb and owns a condo?

b.)What is the probability that the household lives in a large city?

c.)What is the probability that the household lives in a large city or rents an apartment?

Thanks