Math Problem Statement
x 1 2 3 4 5 6 y 1173 2093 3380 5793 9828 16673
Use regression to find an exponential equation that best fits the data above. The equation has form y
a b x where:
a =
b =
Solution
numpy as np import pandas as pd from scipy.optimize import curve_fit
Data points
x = np.array([1, 2, 3, 4, 5, 6]) y = np.array([1173, 2093, 3380, 5793, 9828, 16673])
Define the exponential function
def exponential_func(x, a, b): return a * (b ** x)
Fit the curve
params, _ = curve_fit(exponential_func, x, y, p0=(1, 1))
Extracting the parameters a and b
a, b = params a, bThe exponential equation that best fits the data is:
Where:
Would you like a detailed explanation of the regression process or the steps involved in deriving this equation?
Here are five related questions you might find interesting:
- How can I interpret the parameters and in this context?
- What are the steps to compute the goodness-of-fit for this model?
- Can this equation be used for extrapolation beyond the given data range?
- How does an exponential fit differ from a polynomial fit for this data?
- What is the meaning of regression in general, and why is it important in data analysis?
Tip: Always assess the goodness-of-fit using metrics like R² or residuals to ensure the model is appropriate for the data.
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Math Problem Analysis
Mathematical Concepts
Regression Analysis
Exponential Functions
Curve Fitting
Formulas
y = a * b^x
Least Squares Method
Theorems
Exponential Growth Model
Suitable Grade Level
Grades 10-12
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