Question

What is the probability that a randomly selected house with 2 bathrooms has 3 bedrooms?

0.2
0.4
0.6
0.8

Answer 1

from the table there is 24 houses with 2 bathrooms and 3 bedrooms

there is a total of 30 houses with 2 bathrooms

 the probability is 24 /30 = 0.8

Answer 2

$|\Omega|=30\\ |A|=24\\\\ P(A)=\dfrac{24}{30}=\dfrac{4}{5}=0.8$