Teen skin cancer alarm




  1. Assuming that this survey questioned half boys and half girls, how many students in the sample had experienced sunburn during the previous summer?
  2. Using the percentage figures for those who usually or always wore a hat and the kind of hat preferred, answer the following questions. What overall percentage of boys wore baseball hats? What overall percentage of girls wore baseball hats? What overall percentage of boys wore wide-brimmed hats? What overall percentage of girls wore wide-brimmed hats?
  3. Assuming that the survey questioned half boys and half girls, how many girls and boys are represented in each of the above four questions?
  4. Draw a graphical representation to show the comparison of boys and girls and their tendency to wear different kinds of hats. What figures will you use in the graph?
  5. One paragraph in the article says the following: "six or more cases of sunburn more than doubled the risk of getting melanoma". Write a conditional probability statement showing the increased risk of melanoma if one has been sunburned six or more times.



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