Hp 48g Graphing Calculator Manual de usuario Pagina 283

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To plot a scatterplot of the data and the regression curve:
1. Perform the regression as described above.
2. Press fi^fSTAfl F’LUT SCflTFi to plot the data using
auto-scaling (see page 23-20 for details).
3. After the plot is drawn, press SThTL. to superimpose the most
recent regression model on top of the data.
Calculating Summary Statistics
There are six summary statistics available that you may use to analyze
statistical peculiarities within a data set or to compute statistics other
than those built into the STAT application.
K-COL: 1 V-CDL: 2
CflLCULftTE-.
_EK_IV _2Ke_EYS _EKV _NE
EMTER STflTISTICftL DfiTft
_______________
21
The SUMMARY STATISTICS Screen
The six summary statistics are:
SX Sum of the data in the X-COL of EDAT.
EY Sum of the data in the y--CijL of EDAT.
SX2 Sum of the squares of the data in the M--CC.
EDAT.
EY2 Sum of the squares of the data in the 'f
.................
CO
EDAT.
SXY Sum of the products of corresponding X-CC
Y-COL data. EDAT.
NE Number of rows in EDAT.
of
of
. and
1. Press ri^( STAT Hid
form.
to display the SurlMHRY STflTISTu
Statistics and Data Analysis 21-11
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