K estimated value calculation ( , ) – Casio SERIES FX-9860G User Manual
Page 309
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6-4-6
Performing Statistical Calculations
# You cannot obtain estimated values for a Med-
Med, quadratic regression, cubic regression,
quartic regression, sinusoidal regression, or
logistic regression graph.
xi
yi
10
1003
15
1005
20
1010
25
1011
30
1014
1. From the Main Menu, enter the STAT mode.
2. Input data into the list and draw the linear regression graph.
3. From the Main Menu, enter the RUN
•
MAT mode.
4. Press the keys as follows.
ca(value of
xi
)
K5(STAT)2(
ţ
)
w
The estimated value
ţ
is displayed for
xi
= 20.
baaa(value of
yi
)
1(
ˆx
)
w
The estimated value
ˆx
is displayed for
yi
= 1000.
k Estimated Value Calculation ( , )
After drawing a regression graph with the STAT mode, you can use the RUN
•
MAT mode to
calculate estimated values for the regression graph’s
x
and
y
parameters.
Example
To perform a linear regression using the nearby data
and estimate the values of
ţ
and
ů x
when
xi
= 20 and
yi
= 1000