Question

A poll conducted by Gallup asked random samples of 500 men and 512 women, and as a result 20 of the men and 36 of the women said they were vegetarians. Construct a contingency table (a two-way table) summarizing the above results.

Answer 1

Since a total of 500 men were asked and only 20 said to be vegetarian, 480 men are not vegetarian. Similarly, in the case of the women, 512-36=476 are not vegetarian.

With this information, we can complete the contingency table as shown below