The numbers of polio cases in the world are shown in the table for various years. Year Number of Pollo Cases (thousands) 1988 1992 1996 2000 2005 2007 Let f(t) be the number of polio cases in the world t years since 1980. a) Use a calculator to plot the data. Is it better to model the data using a linear or exponential function? Select an answer 350 138 35 4 3.2 1.3 b) Use your calculator's regression tool to find a regression function that best fits the data as determined in part a). (Round all values to the nearest hundredths.) f(t) = c) As t increases without bound, what value does f(t) approach? Interpret your answer. ,f(t) → Ast → Select an answer d) "Predict the number of polio cases in the year 2025." (Round your answer the the nearest hundredths.) cases.
The numbers of polio cases in the world are shown in the table for various years. Year Number of Pollo Cases (thousands) 1988 1992 1996 2000 2005 2007 Let f(t) be the number of polio cases in the world t years since 1980. a) Use a calculator to plot the data. Is it better to model the data using a linear or exponential function? Select an answer 350 138 35 4 3.2 1.3 b) Use your calculator's regression tool to find a regression function that best fits the data as determined in part a). (Round all values to the nearest hundredths.) f(t) = c) As t increases without bound, what value does f(t) approach? Interpret your answer. ,f(t) → Ast → Select an answer d) "Predict the number of polio cases in the year 2025." (Round your answer the the nearest hundredths.) cases.
Chapter4: Linear Functions
Section4.3: Fitting Linear Models To Data
Problem 24SE: Table 6 shows the year and the number ofpeople unemployed in a particular city for several years....
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Q.7
Transcribed Image Text:The numbers of polio cases in the world are shown in the table for various years.
Year Number of Pollo Cases (thousands)
1988
1992
1996
2000
2005
2007
Let f(t) be the number of polio cases in the world t years since 1980.
a) Use a calculator to plot the data. Is it better to model the data using a linear or exponential function?
Select an answer
b) Use your calculator's regression tool to find a regression function that best fits the data as determined in part a).
(Round all values to the nearest hundredths.)
f(t) =
c) As t increases without bound, what value does f(t) approach? Interpret your answer.
,f(t) →
As t →
Select an answer
350
138
35
4
3.2
1.3
d) "Predict the number of polio cases in the year 2025."
(Round your answer the the nearest hundredths.)
cases.
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