# Math Help - Probability Question

1. ## Probability Question

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

2. Originally Posted by dalollis
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
Hello:
a) prob. $= \frac{45}{650}$

3. b)prob. $=\frac{20+100+180}{650}$ $=\frac{6}{13}$

c)prob. $=\frac{20+100+180+60+5}{650}=\frac{73}{130}$

4. ## other questions

d.)
What is the probability that the household owns a home given that they live in a suburb? is it 120÷225= 8÷15 ?
e.)
What is the probability that the household lives in a suburb or large city?

5. Originally Posted by dalollis
Thanks WA!
d) is correct

e)prob. $=\frac{200+225}{650}$