117
Statistical Graphs and Calculations
Chapter 7
4
(DRAW)
The following are the meanings of the above parameters.
a ......
Regression coefficient
b ......
Regression constant term
r ......
Correlation coefficient
k
k
k
k
k
Power Regression Graph
Exponential regression expresses
y
as a proportion of the power of
x
. The standard
power regression formula is
y
=
a
×
x
b
, so if we take the logarithms of both sides we
get log
y
= log
a
+
b
×
log
x
. Next, if we say X = log
x
, Y = log
y
, and A = log
a
, the
formula corresponds to linear regression formula Y = A +
b
X.
[
3
(Pwr)
4
(DRAW)
The following are the meanings of the above parameters.
a ......
Regression coefficient
b ......
Regression power
r ......
Correlation coefficient
P.106
1
2
3
4
Summary of Contents for fx-7400G PLUS
Page 7: ... fx 7400G PLUS ...
Page 14: ...xii Contents ...
Page 57: ...Differential Calculations Chapter 3 ...
Page 176: ...162 Chapter 8 Programming ...
Page 188: ...Chapter 9 Data Communications 174 ...
Page 199: ...185 1 2 3 4 5 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 200: ...186 Program for Circle and Tangents No 4 Step Key Operation Display 6 7 8 9 10 ...
Page 201: ...187 11 12 13 14 15 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 202: ...188 16 17 18 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 205: ...191 1 2 3 4 5 Program for Rotating a Figure No 5 Step Key Operation Display ...