Casio FX9860GII User Guide - Page 179
Common Distribution Functions, Normal Distribution, Probability Density, or
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• (DIST)(NORM) ... Normal distribution (page 6-39) (t) ... Student-t distribution (page 6-41) (CHI) ... C2 distribution (page 6-42) (F) ... F distribution (page 6-43) (BINM) ... Binomial distribution (page 6-44) (E)(POISN) ... Poisson distribution (page 6-46) (E)(GEO) ... Geometric distribution (page 6-47) (E)(H.GEO) ... Hypergeometric distribution (page 6-49) After setting all the parameters, use A to move the highlighting to "Execute" and then press one of the function keys shown below to perform the calculation or draw the graph. • (CALC) ... Performs the calculation. • (DRAW) ... Draws the graph. I Common Distribution Functions • V-Window settings for graph drawing are set automatically when the Setup screen's "Stat Wind" setting is "Auto". Current V-Window settings are used for graph drawing when the "Stat Wind" setting is "Manual". • After drawing a graph, you can use the P-CAL function to calculate an estimated p-value for a particular x value. The P-CAL function can be used only after a Normal Probability Density, Student-t Probability Density, Ƶ2 Probability Density, or F Probability Density graph is drawn. The following is the general procedure for using the P-CAL function. 1. After drawing a distribution graph, press (G-SLV) (P-CAL) to display the x value input dialog box. 2. Input the value you want for x and then press U. • This causes the x and p values to appear at the bottom of the display, and moves the pointer to the corresponding point on the graph. 3. Pressing T or a number key at this time causes the x value input dialog box to reappear so you can perform another estimated value calculation if you want. 4. After you are finished, press ) to clear the coordinate values and the pointer from the display. • Executing an analysis function automatically stores the x and p values in alpha variables X and P, respectively. I Normal Distribution • Normal Probability Density Normal Probability Density calculates the probability density (p) for a specified single x-value or a list. When a list is specified, calculation results for each list element are displayed in list form. (DIST)(NORM)(NPd) 6-39