Are you tired of manually calculating your data’s mean, median, and mode? Or are you tired of going through hundreds, if not thousands, of rows and columns of data just to find one specific value? Why suffer when you can have the TI84 calculator to do the job for you? The TI84 is the ultimate matchmaker for your data!
What is the TI84?
The TI84 is a graphing calculator made by Texas Instruments. It has been a tried and true tool for many math and science students since its initial release in 2004. It has since gone through various upgrades and now has a color screen model which came out 2011.
The calculator is so versatile; it can handle anything from basic arithmetic to complicated calculus, and with its numerous builtin functions and applications, it can help students solve problems quickly and easily. The TI84 is an essential tool for any student in need of a powerful calculator for their math and science courses.
The Magic of the TI84
The TI84 is more than just a simple calculator; it can handle complex mathematical expressions, statistical analysis, and even graphing functions. With its high processing power, it can calculate a list of data, create scatter plots and histograms, and even find the regression lines for you.
Moreover, with its advanced features like tables and lists, the TI84 can help you organize your data and make your analysis a breeze. It provides realtime feedback, making it easier for you to see the effects of any changes you make. It is a tool that can help you simplify your work and attain better results.
Benefits of Using the TI84
Using the TI84 for your data analysis has many benefits. Here are four of the most compelling reasons to use the calculator:

Easy data input and analysis Inputting data in a TI84 is easy, and it automatically sorts it out for you. You can then use the builtin functions and applications to analyze the data in realtime. You can create histograms and box plots and visualize the data in ways that traditional calculators can’t.

Accuracy With the TI84, you can be sure that your calculations are precise, as it can handle large numbers with ease. You won’t have to worry about miscalculations or errors due to truncation or rounding.

Saves time The TI84 can perform complicated statistical analysis in seconds, which would take hours to do when done manually.

Reliable The TI84 is a reliable tool that students can use for years. It is durable and can withstand rough use, making it a worthwhile investment for any student.
How to Use the TI84 for Data Analysis
Using the TI84 for data analysis is easy; with just a few clicks, you can input your data, compute the statistical measures, and graph the results.
Inputting Data
To input data, follow these steps:
 Press STAT to go to the statistics menu.
 Select Edit to create or modify a list of data.
 Use the arrow keys to navigate to a list and input the data.
Computing Statistical Measures
To compute statistical measures, follow these steps:
 Press STAT and then CALC.
 Choose the statistical measure you want to compute.
Graphing Results
To graph results, follow these steps:
 Press STAT and then PLOT.
 Choose the type of graph you want to create.
 Select the correct list containing the data you want to graph.
The TI84 makes it easy for students to quickly create visual representations of data sets.
Examples of Using the TI84
Here are some practical examples of how the TI84 can help with data analysis:
Example 1: Finding the Mean
To find the mean of a data set using the TI84, follow these steps:
 Input the data set into a list on the calculator.
 Press STAT and then right arrow to move to the CALC menu.
 Choose 1Var Stats and press ENTER.
 Select the list in which you input the data set using the arrow keys.
 Press ENTER, and the mean will be displayed.
Example 2: Creating a Box and Whisker Plot
To create a box and whisker plot using the TI84, follow these steps:
 Input the data set into a list on the calculator.
 Press STAT and then PLOT.
 Choose option 1 (box plot) and press ENTER.
 Select the list in which you input the data set using the arrow keys.
 Press ENTER, and the box and whisker plot will be displayed.
Features of the TI84 Calculator
The TI84 is a powerful calculator that can handle various types of calculations, including:
Advanced Math Functions
The TI84 is perfect for higherlevel math courses as it can handle complex mathematical functions, including:
 Calculus
 Trigonometry
 Algebra
 Geometry
Graphing Functions
The TI84’s graphing capabilities allow you to create realtime graphs for functions like:
 Linear equations
 Quadratic equations
 Trigonometric functions
 Logarithmic and exponential functions
Business and Finance Applications
The TI84 can also be used for business and finance courses, including:
 Interest calculations
 Amortization
 Time value of money
 Financial ratios and analysis
The Future of the TI84
The TI84 has been a staple tool for students for over a decade, and with upgrades like the color screen model in 2011, it has remained relevant. However, with the rise of smartphones and tablets, there is a growing concern about the future of the TI84 and graphing calculators in general.
Despite these concerns, Texas Instruments continues to develop and improve their calculators, releasing their nextgeneration calculator, the TINspire CX, in 2007. The Nspire CX features a colored screen, rechargeable battery, and modern design. It was a bold step in designing graphing calculators for the modern era.
Conclusion
In conclusion, the TI84 is the ultimate matchmaker for your data. It is a reliable tool that can help students solve complex problems, save time, and provide accurate results. With its advanced functions and builtin applications, the TI84 can simplify your data analysis and help you see your work in a more visually engaging way.
So, whether you’re a math or science student, the TI84 is the calculator you need to have in your toolkit. Make sure to invest in this powerful tool to help you achieve academic excellence.
Note: The TI84 is a trademark of Texas Instruments.
Helpful Table
Statistical Measure  Steps to Find  Symbol Used 

Mean  1Var Stats  x̄ 
Median  1Var Stats  M or median 
Mode  1Var Stats  None (use mode function) 
Range  1Var Stats  Range 
Standard Deviation  1Var Stats  s 
Variance  1Var Stats  s² 
Quartiles  1Var Stats or Quartile  Q1, Q2, Q3 
Skewness  1Var Stats  None (use skewness function) 
Kurtosis  1Var Stats  None (use kurtosis function) 
References
 TI84 Plus Graphing Calculator Guidebook, Texas Instruments.
 C. Henry Edwards and David E. Penney. Calculus, Early Transcendentals, 8th edition.
 Michael Sullivan, Fundamentals of Statistics, 3rd edition.
 Texas Instruments. (2021). TINspire CX II versus TI84 Plus CE: The Ultimate Calculator Showdown.
 Wikipedia. (2021). TI84 Plus series.