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    Functions and Graphs : Heart Disease, Cancer and AIDS - Trends and Real World Implications

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    You have been invited to present statistical information at a conference.
    To prepare, you must perform the following tasks:
    1. Search the Internet and the Cybrary to find the number of deaths in the United States due to each of the following medical conditions in each of these years; 1985, 1990, 1995, and 2002.:
    o heart disease
    o cancer
    o AIDS
    2. Plot your data for each disease as points in a rectangular coordinate system.
    3. Using a smooth line, connect your data points for each disease graph.
    4. Using each curve, make a reasonable prediction as to the number of deaths we might expect in 2005 due to each of these medical conditions.
    Follow-up questions:
    Please include responses to these questions with your submission.
    1. Can the graphs that you constructed be classified as functions? Explain.
    2. Why is it reasonable that negative numbers are excluded from both the domain and the range of each of the disease graphs? What would the real-world implications be if these numbers were actually part of the domain and/or range?

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    Solution Preview

    Plot your data for each disease as points in a rectangular coordinate system.
    Year 1985 1990 1995 2002
    Heart Disease 771,169 720,058 684,462 162,672
    Cancer 461,563 505,322 554,643 557,271
    AIDS * 8,000 25,188 39,979 14,095

    Use individual graphs ...

    Solution Summary

    Functions and Graphs are discussed with regard to Heart Disease, Cancer and AIDS. Trends and Real World Implications are investigated. The solution is detailed and well presented.