For the following probabilities, determine
(a) the probability that someone is under 30,
(b) the probability that someone has a high income given that he or she is under 30,
(c) the probability that someone has a low income given that he or she is under 30, and
(d) the probability that someone has a medium income given that he or she is over 50.
Age
|
Income
|
High
|
Medium
|
Low
|
<30
|
.030
|
.180
|
.090
|
30-50
|
.052
|
.312
|
.156
|
>50
|
.018
|
.108
|
.054
|