Hp 39g Graphing Calculator Manual do Utilizador descarregar pdf (Página 105)

Insert data Highlight the entry following the point of insertion. Press EH,

then enter a number. It will write over the zero that was

inserted.

Sort data

values

1. In Numeric view, highlight the column you want to sort,

and press

2. Select the SORT ORDER option. You can choose either

Ascending or Descending.

3. Specify the INDEPENDENT and DEPENDENT data

columns. Sorting is by the independent column. For

instance, if Age is Cl and Income is C2 and you want to

sort by Income, then you make C2 the independent

column for the sorting and Cl the dependent column.

- To sort just one column, choose None for the

dependent column.

- For one-variable statistics with two data columns,

specify the frequency column as the dependent

column.

4. Press 03.

Defining a regression model (2VAR)

The Symbolic view includes an expression (Fitl through Fit5)

that defines the regression model, or “fit”, to use for the

regression analysis of each two-variable data set.

There are three ways to select a regression model:

• Accept the default option to fit the data to a straight line.

• Select one of the available fit options in Symbolic Setup

view.

• Enter your own mathematical expression in Symbolic

view. This expression will be plotted, but it will not he

fitted to the data points.

To choose the

fit

In Numeric view, make sure bttfiliO is set.

Press I SHIFT\SETUP-SYMB to display the Symbolic Setup

view. Highlight the Fit number (SIFIT to S5FIT) you

want to define.

3. Press WiKKRI and select from the following list. Press I

when done. The regression fomiula for the fit is

displayed in Symbolic view.

Statistics aplet

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Hp 39g Graphing Calculator Manual do Utilizador Página 105