Answer:
Step-by-step explanation:
There are two different ways to get only one cab
Do not include, cab, cab because that is more than 1 cab
1: am cab
P(am cab) = 1/3
P(no pm cab) = 2/3
P(am cab no pm cab) = 1/3*2/3 = 2/9
1: pm cab
P( no am cab) = 2/3
P( pm cab) = 1/3
P(no cab pm cab) = 2/3*1/3 = 2/9
The sum of the two options is the probability
P (only 1 cab is) = P(am cab) + P(pm cab) = 2/9+ 2/9 = 4/9
