User manual

40
Statistics, regressions, and distributions
v % u
v lets you enter and edit the data lists.
% u displays the STAT-REG menu, which
has the following options.
Note: Regressions store the regression information,
along with the 2-Var statistics for the data, in StatVars
(menu item1).
1: StatVars Displays a secondary menu of
statistical result variables. Use $
and # to locate the desired
variable, and press < to select
it. If you select this option before
calculating 1-Var stats, 2-Var
stats, or any of the regressions, a
reminder appears.
2: 1-Var Stats Analyzes statistical data from 1
data set with 1 measured variable,
x. Frequency data may be
included.
3: 2-Var Stats Analyzes paired data from 2 data
sets with 2 measured variables—x,
the independent variable, and y ,
the dependent variable.
Frequency data may be included.
Note: 2-Var Stats also computes a
linear regression and populates
the linear regression results.
4: LinReg
ax+b
Fits the model equation y=ax+b to
the data using a least-squares fit. It
30XPlusMV_OM.flpgl Page 40 Friday, November 14, 2014 1:57 PM