HP 30b Business Professional Calculator - Manual (Page 77)

Statistical Operations 69
12 Statistical Operations
Figure 1 The Menu Map for the Statistics Menu
*ax 2
+bx+c and Quartiles do not apply to the HP 20b.
:z
Press
I
to
select:
2 Vars, 1
Var, or 1
Freq.
Descriptive
(y items 2 Vars
Only)
Predictions
(2 Vars Only)
Sums
(y items 2
Vars Only)
DWN
DWN
INPUT INPUT
INPUT
DWN DWN
DWN
Nb Item
x Mean
y Mean
x Std. Dev.
y Std. Dev.
x Population
y Population
S.E. Samp. x
S.E. Samp. y
Press
I
to select:
a*x+b
a*Ln(x) +b
b*e (a*x)
b*x a
b*a x
a/x+b
ax 2 +bx+c*
Sigma x
DWN
Sigma y
Sigma x 2
Sigma y 2
Sigma x y
Quartiles*
(y items 2
Vars Only)
x Min
x Q1
x Median
x Q3
x Max
y Min
y Q1
y Median
y Q3
y Max
DWN
DWN
INPUT
Pred x
Pred y
a
C
(ax 2 +bx+c only)*
Correlation
(Not ax 2 +bx+c )*
b
Covariance
(Not ax 2 +bx+c )*
DWN