Sum sub-menu var sub-menu – HP 300s Scientific Calculator User Manual
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B =
= A + Bx
Sum Sub-menu (
(STAT)
(Sum))
Var Sub-menu (
(STAT)
(Var))
Select this menu item: When you want to obtain this:
Sum of squares of the X-data
Sum of the X-data
Sum of the squares of the Y-data
Sum of the Y-data
Sum of products of the X-data and Y-data
Sum of cubes of the X-data
Sum of (X-data squares X Y-data)
Sum of biquadrate of the X-data
Select this menu item: When you want to obtain this:
n
Number of samples
Mean of the X-data
Population standard deviation of the X-data
Sample standard deviation of the X-data
Mean of the Y-data
Population standard deviation of the Y-data
Sample standard deviation of the Y-data
n
xy
x
y
•
–
•
n x
2
x
(
)
2
–
-------------------------------------------------
r
n
xy
x
y
•
–
•
n x
2
x
(
)
2
–
n
y
2
y
–
(
)
2
+
•
-----------------------------------------------------------------------------------------------------
=
xˆ
y A
–
B
------------
=
yˆ
x
2
x
y
2
y
xy
x
3
x
2
y
x
4
x
x
σ
n
x
σ
n 1
–
y
y
σ
n
y
σ
n 1
–