Casio STAT 2 Instrukcja Użytkownika Pobierz pdf (Strona 3)

To enter multiple or grouped data:

The Stat Editor can be set to display a FREQ (frequency) column beside the X (data) column:

First press the following keys:

(to obtain the STAT options),

then press to turn the Frequency display ON.

Now display the Stat Editor in the frequency format:

(to obtain the STAT options),

then to see the 1-VAR Data Display

Enter all the data values, followed by all the associated frequencies:

Example (Clear existing data first)

To enter the data 1, 2, 2, 3, 3, 3, 4, 4, 5 using the FREQ column to specify the number of

repeats for each of the values 1, 2, 3, 4, 5:

a) Enter the values 1, 2, 3, 4, 5 into the X column of the Stat Editor

(remember to press after each entry)

b) Press to move the cursor to the FREQ column

c) Enter the frequencies: 1, 2, 3, 2, 1, pressing after each entry.

Obtain the sample size, sample mean and sample standard deviation for this data - see

previous page for appropriate keys. (Remember to press to close the Stat Editor,

then so you can access the STAT options.)

(

225.1,0.3,9 

sxn

)

Practice: (Clear the Stat Editor first!)

Freq

For the data entered in the practice above,

135.2,127.2,667.5,120 

sxn



MODE



SHIFT

MODE





SHIFT

1 2 3 4 5 6 7 8

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Casio STAT 2 Instrukcja Użytkownika Strona 3