107
Statistical Graphs and Calculations
Chapter 7
4
(DRAW)
The following are the meanings of the above parameters.
a ......
Regression second coefficient
b ......
Regression first coefficient
c ......
Regression constant term (intercept)
k
k
k
k
k
Logarithmic Regression Graph
Logarithmic regression expresses
y
as a logarithmic function of
x
. The standard
logarithmic regression formula is
y
=
a
+
b
$
log
x
, so if we say that X = log
x
, the
formula corresponds to linear regression formula
y
=
a
+
b
X.
[
1
(Log)
4
(DRAW)
The following are the meanings of the above parameters.
a ......
Regression constant term (intercept)
b ......
Regression coefficient (slope)
r ......
Correlation coefficient
k
k
k
k
k
Exponential Regression Graph
Exponential regression expresses
y
as a proportion of the exponential function of
x
.
The standard exponential regression formula is
y
=
a
$
e
bx
, so if we take the loga-
rithms of both sides we get log
y
= log
a
+
bx
. Next, if we say Y = log
y
, and
a
= log
a
, the
formula corresponds to linear regression formula Y =
a
+
bx
.
P.99
(G-Type)
P.99
(G-Type)
1
2
3
4
Содержание fx-7400G
Страница 46: ...Differential Calculations Chapter 3 ...
Страница 164: ...161 1 2 3 4 5 Program for Circle and Tangents No 4 Step Key Operation Display ...
Страница 165: ...162 Program for Circle and Tangents No 4 Step Key Operation Display 6 7 8 9 10 ...
Страница 166: ...163 11 12 13 14 15 Program for Circle and Tangents No 4 Step Key Operation Display ...
Страница 167: ...164 16 17 18 Program for Circle and Tangents No 4 Step Key Operation Display ...
Страница 170: ...167 1 2 3 4 5 Program for Rotating a Figure No 5 Step Key Operation Display ...