In a study of adults who had received radiation to the brain to treat brain cancer when
Question:
In a study of adults who had received radiation to the brain to treat brain cancer when they were children, researchers found that the cancer survivors tended to develop mild cognitive deficits typically seen in older people. The percentages of childhood brain cancer survivors who have mild cognitive deficits are shown in Table 34 for various ages.
Let p be the percentage of childhood brain cancer survivors who have mild cognitive deficits at age a years. a. Use technology to construct a scatterplot. b. Describe the four characteristics of the association. Compute and interpret r as part of your analysis. c. Use technology to graph the model p = 2.02a - 25 on the scatterplot. Does the line come close to the data points? d. What is the slope? What does it mean in this situation? e. Predict the percentage of 43-year-old childhood brain can- cer survivors who have mild cognitive deficits.
Transcribed Image Text:
Table 34 Percents of Childhood Brain Cancer Survivors Who Have Mild Cognitive Deficits Age 20 30 40 50 60 Percent 27 98
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