In a recent market research survey, 500 married couples were asked to check the appropri...

In a recent market research survey, 500 married couples were asked to check the appropriate box or boxes on the following form:

The results were tabulated as follows: 301 couples checked the DVD player box, 394 checked the microwave oven box, and 217 checked both boxes.

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

b. What percent of these couples own a DVD player or a microwave oven?