Question

the following table represents the highest educational attainment of all adult residents in a certain town. if an adult is chosen randomly from the town, what is the probability that they have a high school degree or some college, but have no college degree? round your answer to the nearest thousandth.

	age 20 - 29	age 30 - 39	age 40 - 49	age 50 & over	total
some college	1318	1027	1063	2554	5962
bachelor’s degree	571	999	688	1225	3483
master’s degree	631	757	697	1323	3408
total	3784	3892	2800	7105	17581

Explanation:

Step1: Find the number of people with high school degree or some college

Add the total number of people with high - school only ($4728$) and some college ($5962$).
$4728 + 5962=10690$

Step2: Find the total number of adults

The total number of adults is $17581$.

Step3: Calculate the probability

Use the formula for probability $P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$.
$P=\frac{10690}{17581}\approx0.608$

Answer:

$0.608$