Introduction:
This sheet will teach you how to u the Casio fx82AU calculator to perform statistical operations.Se
e also our handout for mathematical functions. Any further queries plea contact Student Central.
This sheet will teach you to:
Change ttings on your calculator火旁的字
Put your calculator into statistical mode
Enter obrvations
Display the descriptive statistics
Enter group data
真石漆喷枪
Perform linear regression
1. Settings on your calculator
To turn your calculator on:
Your screen should show a small D and Math at the top of the screen
You need to change a couple of default ttings before you start.
Once you change the they will stay changed and will enable
you to better u your calculator.
1. Get out of Math mode into linear mode
Calculator steps:
2. Change the default so that small decimal answers read in decimal format rather than exponent
format. To check if this needs to happen
Enter 1 ÷ 200 =
If your answer shows as 3
5
10
Calculator steps:
Casio fx-82AU
Statistical calculations
Learning Skills
波兰签证2. Calculation Mode
This is the mode where you perform all your standard or non-statistical functions
粉后Calculator steps:
3. Statistics Mode
This will enable you to enter data for descriptive statistical analysis. To put your calculate into statistical mode
Calculator steps:
If you are entering data that is in a frequency table you then need to do the following
Calculator steps:
To turn the frequency off
disappear
Calculator steps:
To clear the statistical memory, exit stats mode back to comp
Calculator steps:
4. Entering single variable obrvations
To enter obrvations press
Example 2.1
Enter 10, 12, 13, 16
Calculator steps:
5. Display the Descriptive Statistics
or
1
n
x
n
x x
2
x2x
6. Entering obrvations from a frequency table
To enter obrvations from a frequency table firstly ensure you have put it in the frequency mode as above, then type in;
Now put in the frequencies;
Using the arrow keys move the curr to the frequency column then type in
Example 6.1:
Enter the following table into your calculator score frequency 10 12 12 5 13 9 16 7
Calculator steps:
down arrow
move the curr to the frequency column
Once the obrvations are entered the mean and standard deviation are found as above.
12122252
42
409x 409x 52332
x加州鲈鱼
52332
技术评估
x
7. Entering Grouped data
To enter grouped data you first have to find the midpoint of each group. This is done by adding together the lowest and highest value from each group and then dividing it by two. We then u the as our obrvations. Example 5.1:
To find the midpoint of each group: (0+10)/2=5 (10+20)/2=15 (20+30)/2=25 (30+40)/2=35
Calculator steps:
down arrow
move the curr to the frequency column
怎么练气息
202011111272
1252
