Math Problem Statement
The following table shows a tech product's sales during the financial years 2005–2009. (t is time in years since 2005.) Year t 0 1 2 3 4 Sales S (millions) 22.8 39.4 51.7 54.8 54.1 (a) Find a quadratic regression model for these data. (Round coefficients to three significant digits.) S(t) =
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Quadratic Regression
Statistics
Formulas
Quadratic regression model S(t) = at^2 + bt + c
Theorems
Least Squares Method
Suitable Grade Level
Grades 10-12
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