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:

y=701.75(1.6955)xy = 701.75 \cdot (1.6955)^x

Where:

  • a=701.75a = 701.75
  • b=1.6955b = 1.6955

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:

  1. How can I interpret the parameters aa and bb in this context?
  2. What are the steps to compute the goodness-of-fit for this model?
  3. Can this equation be used for extrapolation beyond the given data range?
  4. How does an exponential fit differ from a polynomial fit for this data?
  5. 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