Casio FX-82AU PLUS manual Statistics, Button pressing sequence for statistics is on pages 12 to

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Statistics

The button pressing sequence for statistics is on pages 12 to 15.

Remember!

∙When you have finished entering the data you must press Cto tell the calculator that you have completed entering the scores.

∙When you press SHIFT14 then 2to bring up the value of the mean you must press pto display the value. This is particularly important when you proceed to find the second piece of information, e.g. the standard deviation.

Practise your statistics skills with the following questions.

1Set your calculator to statistics and turn the frequency list off. A Enter the scores 16, 19, 5, 11, 15, 12 and 9.

B Determine the value of the mean, ( x ) to 2 decimal places.

C What is the value of the standard deviation (σ n ) to 3 decimal places? D Determine the sample standard deviation (σ n−1 ) correct to 3 decimal

places.

2Clear the data in the statistics list. The easiest way to clear the data is to turn the calculator off. Alternatively, set the calculator to comp then back to statistics.

3Set the calculator to statistics with the frequency on.

AEnter the data in the table into the calculator.

Scores

Frequency

5

4

6

9

7

15

8

11

9

7

10

4

BDetermine the size of n, the number of scores.

CWhat is the value of the mean?

DDetermine the size of the standard deviation correct to 3 decimal places.

4Determine the mean and standard deviation of the scores in the following table.

 

Scores

10

11

12

13

14

15

16

 

Frequencies

15

12

5

8

10

13

6

Answers

 

 

 

 

 

 

 

 

1B

x

= 12.43, σ n = 4.338,

σ n−1

= 4.685

3B n = 50

C

x

= 7.4

D σ n = 1.356

4x = 12.7 , σ n = 2.079

© Sue Thomson and Shriro Australia PTY Limited. This page may be photocopied for classroom use.

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Contents Using the Casio fx-82AU Plus Scientific Calculator Publishing information Contents Getting started Comp calculations menusSetting decimal places and scientific notation Set up informationSetting the calculator to degrees or radians Fractions and decimals Fractions in the Line modeFractions in the Math mode Answers in different formsFractional indices Simplifying fractionsReciprocals Powers, math mode and brackets Negative, fractional indicesUsing the M feature Powers and rootsDetermining powers Determining rootsEntering trigonometric expressions Using inverse trigTrigonometry Degrees, minutes and secondsRadians to degrees Changing a decimal to degrees, minutes and secondsChanging radians into degrees or degrees into radians Degrees to radiansStatistics menu Turning frequency on or offExample StepContinuing with the example from the previous Mean Standard deviationRandom number formulas Using Ran#Random number function RanInt functionIndependent memory M Using the memoriesUsing values stored in A, B, C, D, X or Y Storing values in A, B, C, D, X or YTips and hints Answers to fractions calculations are improper fractions Trouble shootingCalculator is using a comma in place of a decimal point Calculator is frozen Answers 375075 025 F 205 J 93.75 $84 84.375 45% 79% 245% 1000% 120.5%F 2 G $140.2511 8.55 Working with fractions114 2536 Fix, scientific notation and norm Remember121 76 D 216 728 D 128 152 73 D 6 C 1.3 D 6A7 25 D383 Roots and exponents16 − Tanα = Sinα = Cosα = Check your calculator settingsCosθ = Tanθ = Sinθ = 28 0 D 51 0 E 66 0 F 49Scores Frequency StatisticsButton pressing sequence for statistics is on pages 12 to Scores Frequencies AnswersRight hand screen has a value stored in the memory + π 12 − π × π × 4.3+ 8.1 × 12.7 + 3 + + 8.1 ÷ 116.18Correct to 3 decimal places Degrees ⇔ RadiansExpress your answer 9sin0.7 c90×10−4 9 Logs, natural logs and e5A 2 B Class Frequency GallipoliAustralia and New Zealand joined the First World War1 Want to know more? Waiting time investigation Playing dice simulation SimulationWhat you have to do Subtracting dice BingoGame rules

FX-82AU PLUS specifications

The Casio FX-82AU PLUS is a powerful scientific calculator designed specifically for students and professionals alike who require advanced mathematical functions and features. Renowned for its reliability and user-friendly interface, this calculator has become a staple in classrooms and workplaces around the globe.

One of the standout features of the Casio FX-82AU PLUS is its extensive range of functions. The calculator supports over 250 functions, making it capable of handling a variety of tasks in mathematics, physics, and engineering. These functions include everything from basic arithmetic operations to more complex calculations such as trigonometry, statistics, and calculus. This versatility makes it an ideal choice for high school students, university undergraduates, and professionals.

The FX-82AU PLUS boasts a natural textbook display, which allows users to view expressions and results in a format similar to how they appear in textbooks. This feature enhances understanding and reduces errors, making it easier for users to verify their calculations. The calculator also incorporates a two-line display, allowing users to see both the input and result simultaneously, fostering a seamless calculation experience.

Additionally, the Casio FX-82AU PLUS is equipped with a quick-function key for calculations, which streamlines the process of obtaining results. This feature, combined with its intuitive layout, enables users to operate the calculator efficiently, whether they are performing statistical analysis or solving complex equations.

Another impressive characteristic of the FX-82AU PLUS is its durability and long battery life. Designed with longevity in mind, it features robust construction that is well-suited for daily use, ensuring that it can withstand the rigors of classroom and fieldwork. The calculator is powered by a solar rechargeable battery combined with a backup battery, meaning users can rely on it in various lighting conditions, minimizing downtime during critical operations.

In terms of design, the Casio FX-82AU PLUS maintains a compact and lightweight profile, making it portable and convenient for students and professionals who are always on the go. Its ergonomic layout ensures comfort during prolonged use, allowing users to navigate through functions without unnecessary strain.

In summary, the Casio FX-82AU PLUS is more than just a calculator; it is a comprehensive tool that enhances mathematical learning and professional efficiency. Its wide range of functions, natural textbook display, and durable design set it apart as a preferred choice in the scientific calculator category, making it an essential tool for anyone engaged in mathematics or related fields.
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