Regressions, Interest rate conversions, Percent change – Texas Instruments Calculator User Manual
Page 97
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Appendix — Reference Information
93
Standard deviation with
n
-1 weighting (s
x
):
Mean:
Regressions
Formulas apply to all regression models using transformed data.
Interest Rate Conversions
where:
x
=.01
Q
NOM
P
C
ˆ
Y
where:
x
=.01
Q
EFF
Percent Change
1 2
⁄
x
2
x
∑
2
n
--------------------
–
∑
n 1
–
-----------------------------------------
x
x
)
∑
(
n
---------------
=
b
n
xy
)
∑
(
y
∑
(
)
x
∑
(
)
–
n
x
2
∑
(
)
x
∑
(
)
2
–
---------------------------------------------------------
=
a
y
∑
b
x
∑
–
(
)
n
---------------------------------
=
r
b
δ
x
δ
y
--------
=
EFF
100
e
C Y
⁄
In
×
x 1
ч
(
)
(
1
)
–
Ч
=
NOM
100 C Y
⁄
e
1 C Y In
Ч
⁄
ч
(
x 1
+
(
)
1
)
–
Ч
Ч
=
NEW
OLD 1 %CH
100
--------------
+
#PD
=
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