Statistics

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Statistics
with a TI-83
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Standard Deviation
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Press STAT key Select EDIT and press ENTER This
will show you the empty
data columns. - Enter data in L1 (only) after
each value press ENTER key
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After entering data, return to STAT menu, right
cursor Select CALC Select Option 1 1-Var
Stats, press ENTER Type in the List number you
want the statistics for. It is L1 Press 2nd 1
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Linear Correlation
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Press STAT key Select EDIT Press ENTER Enter
the Independent variable values in L1 Right
cursor to 2nd column Enter the Dependent variable
values in L2
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Clear all Y
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Scatter plot
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Press 2nd Y (STATPLOT) Select Plot1 Select
On Make sure that Xlist is L1
Ylist is L2 Press ZOOM key Select 9 ZoomStat
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Linear Regression
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Press STAT key Select CALC Select option 4
LinReg (axb) Press 2nd 1(L1) comma(,)
Press 2nd 2 (L2) comma(,) Press VARS key,
SelectY-Vars Enter (1) Enter (Y1) This pastes
Y1 ENTER
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Press Y key This will show the equation for
the data entered
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Press the ZOOM key and Select option
9ZoomStat This will draw the graph with a
best fit line
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