Answer:
Step-by-step explanation:
P(a|b)= this mean the probability that a happens given that you already know b has occurred.
So for this P(work|senior) is the probability you will pick someone who works give you know they work. So you look for the over lap between seniors and work in the table and divide it by the number of seniors.
In this case:
P(Work | senior)= 5/(25+5+5) = 5/35 = 1/7
