HP 300s Scientific Calculator User Manual
Page 66
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60
Comparison Regression Curves
The following example uses the data input in as following table:
Compare the correlation coefficient for logarithmic, e
exponential, ab exponential, Power, and inverse regression.
(STAT)
(Type)
(InX)
(STAT)
(Reg)
(r)
(STAT)
(Type)
(e^X)
(STAT)
(Reg)
(r)
(STAT)
(Type)
(A
⋅
B^X)
(STAT)
(Reg)
(r)
(STAT)
(Type)
(A
⋅
B^X)
(STAT)
(Reg)
(r)
x
y
x
y
1.0
1.0
2.1
1.5
1.2
1.1
2.4
1.6
1.5
1.2
2.5
1.7
1.6
1.3
2.7
1.8
1.9
1.4
3.0
2.0
Syy
y
2
y
(
)
2
n
----------------
–
=
Sxy
x
1
–
(
)y
x
1
y
•
n
-------------------------
–
=
xˆ
B
y A
–
------------
=
yˆ
A B
x
---
+
=
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