Math Problem Statement
x 1 2 3 4 5 6 y 1044 1492 2408 3516 4742 6853
Use regression to find an exponential equation that best fits the data above. The equation has form y=abx where:
a = Round to two decimal place values.
b = Round to two decimal place values.
Solution
To find the exponential equation that best fits the given data in the form , we'll use logarithmic transformation and linear regression. This involves taking the natural logarithm of values and then performing a linear regression on and .
Step-by-step Process:
-
Transform the exponential model:
- Given:
- Taking the natural logarithm on both sides:
- This equation resembles a linear form: , where:
- (slope)
- (y-intercept)
-
Calculate for each value:
-
Perform linear regression on and .
I'll proceed with the calculation to find the values of and .The exponential equation that best fits the given data is:
where:
- (rounded to two decimal places)
- (rounded to two decimal places)
Would you like a detailed explanation of the steps, or do you have any other questions?
Here are some related questions:
- What is the correlation coefficient () of the regression?
- How do we determine if an exponential model is the best fit for the data?
- How does transforming data help in regression analysis?
- Can you solve for when using this model?
- How would the process differ for a logarithmic or linear model?
Tip: Exponential models are suitable when the rate of change of a variable increases or decreases proportionally to its current value.
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Math Problem Analysis
Mathematical Concepts
Exponential Regression
Linear Transformation
Logarithms
Regression Analysis
Formulas
Exponential equation: y = ab^x
Logarithmic transformation: ln(y) = ln(a) + x ln(b)
Theorems
Linear Regression Theorem
Logarithmic Properties
Suitable Grade Level
Grades 10-12, College level