How much person time is accumulated in mayas study

Reference no: EM133568113

1. Maya is studying the relationship between flying through a meteor shower and death over 10 years. She follows 6 pilots. Three pilots never crash and die. One crashes and dies at the end of year 2, and one crashes and dies at the end of year 5. One leaves her study at the end of year 3. How much person time is accumulated in Maya's study?

2. What is the incidence density rate of mortality in Maya's study? (1 point)

3. If Maya looked at another study, and saw that there were 80 person years of people flying through meteor showers, how many deaths might she expect? (1 point)

4. Ethan is studying how many students use marijuana over a 30 day period. He tracks 10 students. Two smoke marijuana at the end of the first day. One smokes marijuana at the end of day 20. One leaves the study at the end of day 10. What is the incidence density rate? (3 points)

5. In the year 2000, Springfield had a population of 200,000. 200 existing cases of colon cancer were reported. There were 25 deaths that were attributed to colon cancer.

What measure would we use to estimate the proportion of colon cancers that are fatal?
Calculate that measure:

Reference no: EM133568113

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