Statistical Operations
11–9
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
6.61
Ï
40
/
7.21
Ï
60
/
7.78
Ï
80
/
Five data pairs entered.
º
%
{
}
ˆ
ˆ
Displays linear–regression
menu.
Correction coefficient; data
closely approximate a strai
ht
line.
Õ
ˆ
ˆ
Slope of the line.
Õ
ˆ
ˆ
y–intercept.
x
0 20 40 60 80
8.50
7.5 0
6.50
5.50
4.50
r = 0.9880
m = 0.0387
b = 4.8560
(70, y)
y
X
What if 70 kg of nitrogen fertilizer were applied to the rice field
?
Predict the grain
yield based on the above statistics.
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