In a recent transportation survey, 500 high school seniors were asked to check the appro...

In a recent transportation survey, 500 high school seniors were asked to check the appropriate box or boxes on the following form:

The results were tabulated as follows: 102 students checked the automobile box, 147 checked the motorcycle box, and 21 checked both boxes.

a. Draw a Venn diagram illustrating the results of the survey.

b. What percent of these students own an automobile or a motorcycle?