Casio fx-82AU PLUS Calculator User guide
The Calculator fx-82AU PLUS is a user-friendly calculator designed for students of statistics. It has a built-in "Statistics Mode" (STAT) that allows you to perform calculations faster and with greater accuracy. This mode is a valuable tool for students of statistics, however, it's important to understand the formulas behind the shortcuts in order to show working during exams.
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The “Statistics Mode” (STAT) contained in most modern calculators is a valuable tool for students of statistics.
When used correctly, STAT mode allows users to perform calculations faster and with greater accuracy. However, whilst STAT mode can be an incredibly useful addition to your statistical skill set, it must be used with caution. In an exam setting, lecturers often want students to show working, so it is important to understand the formulae behind the shortcuts.
Think of using STAT mode as an option when double checking your work or correcting a typing error. The following example illustrates how you might use STAT mode in practice.
Using STAT mode
Method 1: Complete manual entry
To calculate the sample mean,
_ x , type:
!
And what about the sample standard deviation, s?
3.25
2.916666667
1.707825128
Method 2: “Answer Memory”
The sample mean,
_ x , would be calculated in the same way as before: key).
The number 3.25 will stay in answer memory until the equals key is pressed again.
To calculate the sample standard deviation, s:
3.25
Method 3: “STAT” Mode 1
2.916666667
“STAT” mode is entered by pressing the following keys:
1.707825128
Entering the sample data one at a time:
There is immediate access to a variety of statistics. To get the sample mean,
_ x :
1 A CASIO fx-82AU PLUS was used in this example.
3.25
!
And for s:
= 1.707825128
STAT mode is the fastest and most efficient entry method.
However, remember that showing the process in getting to a final result can be more important than the result itself.
Need more information? Make an appointment with the ASLC maths/stats adviser.
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Key Features
- STAT mode for faster and accurate calculation
- Provides shortcuts for statistical calculations
- Allows users to calculate sample mean (x) and sample standard deviation (s)
- Supports manual entry, answer memory and STAT mode
- Provides immediate access to various statistics after entering sample data
- Easy to use and efficient
- Offers help via ASLC maths/stats adviser
Frequently Answers and Questions
What is the STAT Mode used for?
When should I use STAT Mode?
How can I access STAT Mode?
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