Answer
0.43 or 43%
Work Step by Step
P(event)=$\frac{numberoffavorableoutcomes}{numberofpossibleoutcomes}$
There are 100 possible outcomes because there are 100 total responses. There are 43 favorable responses so 43 is the number of favorable outcomes.
P(event)=$\frac{numberoffavorableoutcomes}{numberofpossibleoutcomes}$
P(4 year college)=$\frac{43}{100}$
P(4 year college)=0.43 or 43%