Casio fx-82EX 소책자 - 페이지 4

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3) Statistics

In order to solve statistics log into statistics from main menu w2 and choose the type of your

Statistics. In this session we will solve 1 variable statistics and 2 Variable (linear equation)

Example 1:

Rami got the following grades in Mathematics:

30, 32, 35, 34, 36, 40, 32, 33, 36, 41, 44, 37,

Calculate the mean. Calculate the standard deviation

Steps using Calculator fx-82EX:

log into Statistics w2

Choose 1- Variable 1

fill up the table

30=32=35=34=36=40=32=33=36=4

1=44=37=

click option key T2 for calculation.

A screen will show all calculations scroll down by arrow to see more result

4) Table

In order to use table using fx-82EX log into main menu screen and choose Table w3

Example 1 : Check whether the function ( ) =

(1,5).

Steps using calculator: Make sure the calculator is loged in to Table

Q)d+3==1=5==

The table will show the result, now look at the f(x)

Values are they increasing or decreasing?



To evaluate the function at any given "x"value, move the marked black space by arrow

downword or upword in "x" column and replace it by any "x" value

Example 2 : change the 1

Steps :

15=

"x" value by 15

+ 3 is decreasing or increasing over the domain