Casio FX-795P - 7-5 Statistic Functions; EOX; EOY

192
7-5
Statistic
Functions
Argument
®
Numeric
expression
EOX
Function:
Obtains
the
estimated
value
of
x
for
a
value
of
y
given
as
the
argument
in
the
paired
variable
statistics
of
&
,
y).
Parameter:
Argument:
Numeric
expression
giving
the
value
of
y.
Explanation:
1)
Obtains
the
estimated
value
of
x
for
the
value
of
y
according
to
the
linear
regression
expression
y
=
@
+
bx
in
the
paired
variable
statistics
of
(x,y).
EOX(y) = 454
2)
The
values
of
linear
regression
constant
term
@
and
jinear
regression
coeffi-
cient
b
are
determined
by
the
statistical
data.
3)
The
value
of
EOX(y)
will
be
uncertain
when
b=
0.
The
input
value
y
is
with
the
range
of
lyl
<
101°
and
the
estimated
value
of
x
is
with
the
range
of
|EOX(y)|
<
101°°
when
b
*
0.
4)
As
a
rule,
the
argument
is
enclosed
in
parenthesis
but
the
parenthesis
can
be
omitted
if
the
argument
is
a
variable
or
a
numeric
value.
7-5 Statistic Functions
Argument ®
Numeric expression
EOY
Function:
Obtains the estimated value of y for x a value of given as the argument in the
paired variable statistics of (x , y).
Parameter:
Argument: Numeric expression giving the value of x.
Explanation:
1) Obtains the estimated value of y for the value of x according to the linear
regression expression y =a + bx in the paired variable statistics of (x , y).
EQY(2) =atb«x
2) The values of linear regression constant term @ and linear regression coeffi-
cient b are determined by the statistical data.
3) Input value x is with the range of xl < 10'°° and the estimated value of y is
with the range of [EOY(x)I < 10!°°.
4) As a rule, the argument is enclosed in parenthesis but the parenthesis can be
omitted if the argument is a variable or a numeric value.
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