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© 2012 Texas Instruments Educaon Technology Page 49
The calculated regression line
The Stascs Calculaons menu
The line that was ed by hand and eye can be compared
with the calculated linear regression line using opon 4 in the
Analyze menu. Pressing b461 will display a line with
equaon of the form y=mx+b.
As usual, you can click and drag on the regression equaon to
move it to a convenient place.
There are two methods for displaying summary stascs:
1. For a single stasc you can type its name and use
the h key to choose the variable, e.g. =median(fshoe).
=MEDIAN(h·
2. On a page, you can enter a complete
set of stascs into spreadsheet cells.
Open a new page and press b41
to see the range of stascal calculaons. (Once again these
will be very familiar to users of the TI-83/4).
Choose opon .
You have the opon to display stats for more
than one list but for now choose 1 list and
then OK.
Choosing the data list can either be done
using the Touchpad, or you can type the
name.
Type the leer of the column where you
want the results to appear.