Quiz: Interpolation and Regression

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(:title Quiz: Interpolation and Regression:) (:keywords quiz, test, Python, plot, interpolate, regression, curve fit, introduction, course:) (:description Learning assessment on interpolation and regression with Python.:)

1. Given the following data: 

  x, y
  0, 2
  1, 1

What is the predicted y value with a linear interpolation of the data at x=0.5?

A. 0.25
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Incorrect.

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B. 0.5
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Incorrect.

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C. 1.5
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Correct.

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D. 2.0
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Incorrect.

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2. What is a module for nonlinear regression in Python?

A. numpy.polyfit
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Incorrect. The polyfit function creates a polynomial regression of data.

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B. scipy.optimize.curve_fit
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Correct. Scipy.optimize package has a minimize and curve_fit function for nonlinear regression. Gekko is another Python package for optimization and regression.

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C. numpy.optimize
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Incorrect. Numpy does not have an optimization function.

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3. What is a Python function that can find solutions to nonlinear equations?

A. matplotlib.fsolve
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Incorrect. This package is used to create plots.

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B. numpy.optimize.fsolve
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Incorrect. Numpy is a base numerical Python package for other packages such as Scipy.

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C. scipy.optimize.fsolve
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Correct.

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