Chapter 12 - Data Analysis and Probability - 12-7 Thoretical and Experimental Probability - Practice and Problem-Solving Exercises - Page 761: 32

0.39 or 39%

P(event)=$\frac{numberoffavorableoutcomes}{numberofpossibleoutcomes}$ There are 100 possible outcomes because there are 100 total responses. There are 39 favorable responses because trade school responses(15)+community college responses(24)=39 responses, so 39 is the number of favorable outcomes. P(event)=$\frac{numberoffavorableoutcomes}{numberofpossibleoutcomes}$ P(trade school or community college)=$\frac{39}{100}$ P(trade school or community college)=0.39 or 39%