Question

The following table represents the highest educational attainment of all adult residents in a certain town. If a resident who is aged 30-39 is chosen at random, what is the probability that they have completed a master's degree? Round your answer to the nearest thousandth.
Age 20-29 Age 30-39 Age 40-49 Age 50 & over Total
High school only 1478 384 812 2070 4744
Some college 2299 1374 412 730 4815
Bachelor's degree 1973 1432 570 1223 5198
Master's degree 1045 914 497 663 3119
Total 6795 4104 2291 4686 17876

Answer 1

Probability = (number aged 30–39 with a master's) / (total aged 30–39) = 914/4104 ≈ 0.222709, which rounds to 0.223 (to the nearest thousandth).