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File name : CBM_SR285,A_HDBSR285T19_English.doc
version : 2010/04/26
To insert a constant at the cursor position ( See Example 52.
) :
1. Press [ CONST ] to display the physical constants menu.
2. Press [
] until the constant you want is underlined.
3. Press [
].
Mode 1 - STAT
There are three menu operations in statistics menu :
1–VAR
( for
analyzing data in a single dataset),
2–VAR
( for analyzing paired
data from two datasets ) and
D–CL
( for clearing all datasets). See
Example 38.
Single-Variable / Two-Variable Statistics
Step :
1. From the statistics menu, choose
1–VAR
or
2–VAR
and
press [
].
2. Press [ DATA ] and there are three menus:
DATA–INPUT
,
LIMIT
–
SET
,
DISTR
. Please select
DATA–INPUT
and press
[
].
3. Enter an x - value and press [
].
4. Enter the frequency (
FREQ
) of the x - value (in
1–VAR
mode) or the corresponding y - value ( in
2–VAR
mode )
and press [
].
5. To enter more data, repeat from step 3.
6. Press [ 2nd ] [ STATVAR ] and scroll through the statistical
result menus by [
] or [
] to find out statistical variables
you want. ( See table below )
Variable Meaning
n
Number of the x values or x-y pairs entered.
or Mean of the x values or y values
Xmax
or
Ymax
Maximum of the x values or y values
Xmin
or
Ymin
Minimum of the x values or y values
Sx
or
Sy
Sample standard deviation of x values or y
values.
1n
)xx(
S
2
x
−
∑
−
=
,
1n
)yy(
Sy
2
−
∑
−
=
σ
x
or
σ
y
Population standard deviation of x values or y
values
n
)xx(
x
2
∑
−
=σ
,
n
)yy(
y
2
∑
−
=σ
Σ
x
or
Σ
y
Sum of all x values or y values