Given that, a resident who has completed only a bachelor's degree
is chosen at random.
To find the probability that a resident who has completed only a bachelor's degree are aged 50 and above.
Number of students who has completed only a bachelor's degree and are aged 50 and above =1933
Total number of students who have completed bachelor's degree is 4139.
Probability is defined as,


So, the probability that a resident who has completed only a bachelor's degree are aged 50 and above is 0.4670