Logistic Functions Part 3
In this lesson on logistic functions, the focus is recognizing and understanding the algebraic form of a logistic model and its parameters. With various input-output pairs and given information, the instructor guides the viewer through finding parameter values such as the growth factor and rate, initial value, limiting value, and more. The lesson also includes a useful trick for computing A and B values and demonstrates how to use a regression to find parameter values for multiple points. Overall, this lesson is a great resource for those looking to deepen their understanding of logistic functions and their parameters.
Be familiar with and recognize the algebraic form for a logistic model, including the corresponding parameters and if those parameters have any meaning in the context of the functional relationship (e.g. does a parameter control the initial value, rate of change (shape), decreasing or increasing (flip), max/min, limiting values, etc.).
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- Notes - Notes from this lesson.
- How do you find unknown parameters of a logistic model given different kinds of information?
- How can you use the Equation Solver to solve for a parameter in a logistic function?
- If you are given two input/output pairs and an initial rate in a logistic model, how do you find the missing parameters?
- How do you find a logistic regression using a TI graphing calculator?
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Staff Review
This lesson does a few last practice problems for finding the values of parameters of a logistic model given different information. The Solver function on a TI graphing calculator is used again to solve for a parameter in the logistic function.
