"In a survey of 250 European travelers, 93 have traveled to Africa, 155 have traveled to Asia, and 70 have traveled to both of these continents, as illustrated in the Venn diagram above." The Venn ...

4 + 6 + 8 = 18, the Venn diagram only shows the data of 18 people. Assuming that the given data is correct, there should be 2 people placed inside the rectangle and outside the circles who do not ...