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 only high school or just some college? Round your answer to the nearest thousandth.
Age 20-29 Age 30-39 Age 40-49 Age 50 & over Total
High school only 506 1033 929 846 3314
Some college 677 798 1371 1456 4302
Bachelor's degree 800 1238 376 1870 4284
Master's degree 1141 819 496 479 2935
Total 3124 3888 3172 4651 14835
Answer
Attempt 1 out of 2

Answer 1

We want P(high school only or some college | age 30–39) = (1033 + 798) / 3888 = 1831 / 3888 ≈ 0.470936, which rounds to 0.471.