HP 39g+ Graphing Calculator Guia do Utilizador descarregar pdf (Página 109)

Statistics aplet 8-15

Plotting You can plot:

• histograms ( )

• box-and-whisker plots ( )

• scatter plots ( ).

Once you have entered your data ( ), defined your

data set ( ), and defined your Fit model for two-

variable statistics (

SETUP-SYMB), you can plot your

data. You can plot up to five scatter or box-and-whisker

plots at a time. You can plot only one histogram at a time.

To plot statistical

data

1. In Symbolic view ( ), select ( ) the data

sets you want to plot.

2. For one-variable data ( ), select the plot type in

Plot Setup (

SETUP-PLOT). Highlight STATPLOT,

press , select either Histogram or

BoxWhisker, and press .

ΣY2 Sum of y

-values.

ΣXY Sum of each xy.

SCOV Sample covariance of independent

and dependent data columns.

PCOV Population covariance of

independent and dependent data

columns

CORR Correlation coefficient of the

independent and dependent data

columns for a linear fit only

(regardless of the Fit chosen).

Returns a value from 0 to 1, where

1 is the best fit.

RELERR The relative error for the selected

fit. Provides a measure of accuracy

for the fit.

Statistic Definition (Continued)

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HP 39g+ Graphing Calculator Guia do Utilizador Página 109