Two-Circle Venn Diagram with Numbers. Use the Venn diagram to answer the following questions.
Tomatoes and Cancer. A study by the Harvard Medical School (Journal of the National Cancer Institute, February 17, 1999) reviewed 72 previous studies of the effect of tomatoes on cancer. The data showed convincingly that “high consumers of tomatoes and tomato products are at substantially decreased risk of numerous cancers, although probably not all cancers.” Consider the following table that shows the incidence of oral cancer for a group of people who ate an average of one tomato a day and another group of people who ate fewer than three tomatoes per week. Draw a Venn diagram for the data.
No oral cancer | Oral cancer | |
One tomato per day | 191 | 9 |
Fewer than three | 164 | 16 |
tomatoes per week |
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