Casio FX-CG10 Software User Guide - Page 208
Drawing a Regression Graph, Selecting the Regression Type
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k Drawing a Regression Graph Use the following procedure to input paired-variable statistical data, perform a regression calculation using the data, and then graph the results. 1. From the Main Menu, enter the Statistics mode. 2. Input the data into a list, and plot the scatter diagram. 3. Select the regression type, execute the calculation, and display the regression parameters. 4. Draw the regression graph. Example Input the two sets of data shown below and plot the data on a scatter diagram. Next, perform logarithmic regression on the data to display the regression parameters, and then draw the corresponding regression graph. 0.5, 1.2, 2.4, 4.0, 5.2 (xList) -2.1, 0.3, 1.5, 2.0, 2.4 (yList) 1 m Statistics 2 a.fwb.cwc.ewewf.cwe -c.bwa.dwb.fwcwc.ew 1(GRAPH)6(SET)c1(Scatter)J1(GRAPH1) 3 1(CALC)6(g)2(Log) 4 6(DRAW) • You can perform trace on a regression graph. You cannot perform trace scroll. k Selecting the Regression Type After you graph paired-variable statistical data, you can use the function menu at the bottom of the display to select from a variety of different types of regression. • {ax+b}/{a+bx}/{Med}/{X2}/{X3}/{X4}/{Log}/{aebx}/{abx}/{Power}/{Sin}/{Logistic} ... {linear regression (ax+b form)}/{linear regression (a+bx form)}/{Med-Med}/{quadratic regression}/{cubic regression}/{quartic regression}/{logarithmic regression}/{exponential regression (aebx form)}/{exponential regression (abx form)}/{power regression}/ {sinusoidal regression}/{logistic regression} calculation and graphing • {2-VAR}... {paired-variable statistical results} 6-15