Question about Sentry CA 756 Calculator
I need to be able to find out what polynomial has a graph that passes through given points, find what linear model fits data best, estimate data from the linear model, find what quadratic model fits data best, use quadratic model to estimate production, find what cubic model best fits data, and estimate production from the cubic model.
What is the question?
Put your calculator in STAT mode (2-var statistics or regression )
Enter your data in two lists, preferably sorted according to the x-value
Choose a regression model from the ones available and get the calculator to give you the best fit.
However to see which regression model best fits you data you need a graphing calculator to draw the scatter plot, then superpose on the scatter plot the curve of best fit given by the regression model.
Once you accept a model as the most suited one, you can use the equation of the curve to predict a y-value given an x-value (what ever REAL LIFE meaning they might have)
Posted on Dec 11, 2013
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Posted on Jan 02, 2017
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