Plot the graph, Draw the regression curve, Display the equation for best linear fit – HP 39g Graphing Calculator User Manual
Page 98
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Plot the graph
9. Plot the graph.
PLOT
Draw the
regression
curve
10. Draw the regression curve (a curve to fit the data points)
This draws the
regression line for the
best linear fit.
JBlIlDSHIBillilliifflBHIliBZni
Display the
equation for
best linear fit
11. Return to the Symbolic view.
SYMB
gj
statistic
;
svmehlic
view
^BI
v'Slilg—eg
F i 11: 425.875*li+376„.
S2:
F i 12: m-stX+b
¥
I ENTER IWDEPEWDEMT______________
li3TOI№lll5tMWiBWBKnngliIiniB|
12. Display the equation for the best linear fit.
Q to move to the Fnl
field
The full FITl
expression is shown. The
slope (m) is 425.875.
The y-intercept (b) is about 376.25.
8-4
Statistics aplet