Casio FX-730P Owner's Manual page 50

40
CHAPTER 2 Manual Operations
Operation:
First input the statistical data shown in the table. (Use the RUN mode.)
Input allx andy data .
Upon completion of data input, output all of the statistics one by one by using
STAT LIST.
(Number of data)
(Sum of x data)
~~~~~
r1
=5
(Sum of y data)
(Sum of squares of x data)
(Sum of squares of y data)
(Sum of products of
x
and y data)
(Mean ofx data)
(Mean of y data)
(Standard deviation of x)
(Standard deviation of y)
f--~~~~~~~~~~~-
~ :Ex =25
- ·-:1C'
- .:.,._I
:::r~l2 = 161
'=:"'·.i·r·
· - : · -1
C'...,
~
.. r ..:.. -
·-'I
' ; ."' - .... - 14q
'-'.I .. ..
r - .. •
:::r~/n=5
ZY/n=5
r;:::) • ..·· .. .-,
C' .-. ,_,- ,- , .-, .-.
1 .-. , - ,
~
)
1
1.J
t
I
=
L •
._1
.a::. .. ·
1:1
L .L L •:•
Others omitted
Comparison of products x and
y
on the basis of the above calculation results
shows that the sums total and the mean values are the same, but the standard
deviation is larger in the case of product x . This suggests that there is a larger
variance in shipment of this product.
Now find correlation coefficients and estimated values through a regression
calculation with paired data.