Casio STAT 2 Manual do Utilizador descarregar pdf (Página 2)

TO ENTER THE DATA

Data may be entered singly or in multiples of each score.

To enter data singly:

Enter each data value into a separate row of the Stat Editor, pressing after each

entry.

Practice: Enter: 1, 3, 3, 5, 6, 6, 6, 7, 10. Check the display shows 9 data values.

If you notice you have entered a value incorrectly:

 move to the cell containing the data you want to change (press the up/down REPLAY

key),

 type in the new data and press

When you are satisfied the data is all correct, close the Stat Editor by pressing

ACCESSING STATISTICAL VALUES:

First make sure you have closed the Stat Editor - the display screen should be empty.

Press followed by the appropriate keys for the value you require:

for

Symbol

Keys to press

Meaning for the keys

Sample size

4:Var 1:n

Mean

4:Var 2:



Population

Standard

Deviation



4:Var 3:



Sample

Standard

Deviation

4:Var 4: s

For the data entered in the practice above,

635.2,485.2,22.5,9 

sxn



and the variance,

= 6.944

To calculate the variance, get the

s.d. and then press:

SHIFT

1 2 3 4 5 6 7 8

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Casio STAT 2 Manual do Utilizador Página 2