Rebell SC2080 Manuel D'utilisation page 37

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2: Data
3: Sum
4: Var
5: Reg
6: MinMax
3: Edit
5: Distr
To view or change the data, choose one of the options 1 to 3. Options 4 to
6 serve for the selection of required variables of data analyses. Values of
statistical variables depend on inserted data. Attention! The choice number
may differ and some choices may be missing according to situation (e.g. Edit,
Distr, MinMax).
You can retrieve them by means of the below-specified commands:
Statistics of one variable:
[3](SUM)[1]
Σx
2
[3](SUM)[2]
Σx
n [4](VAR)[1]
[4](VAR)[2]
[4](VAR)[3]
xs
n
xs [4](VAR)[4]
n–1
minX [6](MinMax)[1] Minimum of the x value.
maxX [6](MinMax)[2] Maximum of the x value.
Distr submenu:
P ( [5][1]
Q ( [5][2]
R ( [5][2]
→ t [5][4]
This menu may be used to calculate probability of standard normal distribution.
Normalized random variable t is calculated by means of the expression shown
below with average value of
is obtained from data entered on the screen in the STAT editor.
Statistics of two variables:
Σx [3](SUM)[2]
[3](SUM)[4]
Σy
Σx [3](SUM)[1]
2
[3](SUM)[3]
Σy
2
[3](SUM)[6]
Σx
3
[3](SUM)[8]
Σx
4
[3](SUM)[5]
Σxy
Data editor screen.
Summation submenu.
Submenu of statistical variables.
Regression submenu.
Submenu of minimums/maximums.
Submenu of command editing: [Ins], [Del-A].
Distr submenu with commands for the calculation of normal
distribution.
Sum of all x values.
2
Sum of all x values.
Number of inserted x values.
Average of x values.
Standard deviation of x values.
Sample standard deviation of x values.
and value of standard deviation of the file xs
Sum of all x or y values.
Sum of all x or y
2
Sum of all x or x
3
Sum of pair (x • y) variables x–y.
14–EN
values.
2
values.
4
that
n