Hp Prime Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 237)

100

101

Statistics 2Var app 233

necessary), the X Rng and Y Rng fields in Plot Setup

view. (

SP).

3. Press

If the data set and regression line are not ideally

positioned, Press V and select Autoscale.

Autoscale can be relied upon to give a good starting

scale which can then be adjusted later in the Plot

Setup view.

Tracing a scatter

plot

The figures below the plot

indicate that the cursor is

at the second data point of

S1, at ((1, 920). Press

move to the next data

point and display

information about it.

Tracing a curve If the regression line is not showing, tap

. The

coordinates of the tracer cursor are shown at the bottom

of the screen. (If they are not visible, tap .)

PressYto see the

equation of the

regression line in

Symbolic view.

If the equation is too wide

for the screen, select it

and press

The example above shows that the slope of the regression

line (m) is 425.875 and the y-intercept (b) is 376.25.

Tracing order While > and < move the cursor along a fit or from

point to point in a scatter plot, use

= and \ to choose

the scatter plot or fit you wish to trace. For each active

analysis (S1–S5), the tracing order is the scatter plot first

and the fit second. So if both S1 and S2 are active, the

tracer is by default on the S1 scatter plot when you press

P . Press \ to trace the S1 fit. At this point, press =

to return to the S1 scatter plot or

\ again to trace the S2

scatter plot. Press

\ a third time to trace the S2 fit. If you

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Hp Prime Graphing Calculator Manuel d'utilisateur Page 237

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