Heart Disease, Cancer and AIDS : Plotting Graphs and Defining Functions
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I have found the number of deaths in the United States due to each medical condition in each of the following years.
1985 1990 1995 2002
Heart Disease 390,000 720,000 850,000 960,000
Cancer 200,00 505,000 547,000 555,000
AIDS 2,500 7,500 12,500 17,500
How do I plot the data on a graph in a rectangular coordinate system if I do not have excel to determine from the two points. x is my years and y is my deaths to predict the number of deaths in 2005 by using a smooth line to connect my data points for each disease graph and to also find the y intercept? Can you show me? HELP!!
Can they be classified as functions? If so could you please explain?
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Solution Summary
Graphs relating to Heart Disease, Cancer and AIDS and functions are defined. The solution is detailed and well presented. The response received a rating of "5" from the student who originally posted the question.
Education
- BSc , Wuhan Univ. China
- MA, Shandong Univ.
Recent Feedback
- "Your solution, looks excellent. I recognize things from previous chapters. I have seen the standard deviation formula you used to get 5.154. I do understand the Central Limit Theorem needs the sample size (n) to be greater than 30, we have 100. I do understand the sample mean(s) of the population will follow a normal distribution, and that CLT states the sample mean of population is the population (mean), we have 143.74. But when and WHY do we use the standard deviation formula where you got 5.154. WHEN & Why use standard deviation of the sample mean. I don't understand, why don't we simply use the "100" I understand that standard deviation is the square root of variance. I do understand that the variance is the square of the differences of each sample data value minus the mean. But somehow, why not use 100, why use standard deviation of sample mean? Please help explain."
- "excellent work"
- "Thank you so much for all of your help!!! I will be posting another assignment. Please let me know (once posted), if the credits I'm offering is enough or you ! Thanks again!"
- "Thank you"
- "Thank you very much for your valuable time and assistance!"
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