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Step By Step Tutorial For Linear Regression Calculator

A linear regression calculator can be any calculator that is able to perform the linear regression function. Later on, we will discuss a step by step tutorial for linear regression, and in that step by step, we use a graphing calculator.

Does that mean individuals need to use a graphing calculator?

The simple answer here is no.

While graphing calculators can be great linear regression calculators, especially with their abilities to plot the data and show the actual graph, they aren’t the only calculators on the market that are able of performing the linear regression function.

In fact, most scientific calculators can perform just as good as graphing calculators in this respect.

Before we talk about linear regression calculator options currently on the market, we need to first talk about what linear regression is.

What is Linear Regression

Before we take a look at how to use a calculator to do a linear regression, we need to know what exactly linear regression is.

In statistics, linear regression is one way of showing a possible relationship between a dependent variable and an independent variable.

For example, take the height and weight averages of teenage boys. The independent variable is going to be the teen male’s height, while the dependent variable is the teen male’s weight.

Once this data is put down on a graph, in many cases, the information shows a linear pattern or a pattern that forms a line or trend one way or another.

While finding the linear regression is possible by hand, it is much simpler to do so by using a linear regression calculator.

Step by Step Tutorial for Linear Regression Calculator: TI-84

The simplest way to find linear regression is by using a graphing calculator.

In order to help make this process as simple as possible, we’ve put together a step by step tutorial for linear regression with the use of the popular graphing calculator model TI-84.

Let’s use this as our example data set:

Years Worked (x) 1 30 28 15 10 9 27 7 15
Salary (y) 56384 90464 91857 61109 59014 79631 96031 64211 52731

 According to the above data set, x represents the years worked in an imaginary company, while y represents the yearly salary earned

1. Turn on your IT-84

2. From the home screen, press the STAT button then number 5 and ENTER. This will allow you to set up the calculator’s built-in list editor.

3. Now press the STAT button again, then ENTER. This will select the list editor. Since we only have two sets of data, we will only be using L1 and L2. If there is any date already entered, then make sure to clear it all out.

4. Once the fields are clear, start entering your data in. Your x will go into L1 while y will go into L2.

5. Once all the data is entered, you want to hit the STAT button, followed by the CALC option and 4 to select the LinReg(ax+b) option. Press ENTER to confirm this option.

6. The next screen will show you your regression equation. Based on our numbers, your screen should resemble:

Y=ax+b

a=1313.193569 rounded to a=1313.19

b=51662.05702 rounded to b=51662.06

This means that our regression equation is Y=1313.19X+51662.06.

Users simply have to solve from there!

Top Calculators for Linear Regression

Casio fx-115ES PLUS 

linear regression calculator - Casio fx-115ES image

Specification:

  • Product Dimensions: 0.4 x 6.4 x 3.1 inches
  • Item Weight: 3.36 ounces
  • Shipping Weight: 8 ounces
  • ASIN: B007W7SGLO
  • Item model number: FX-115ES Plus
  • National Stock Number: 7420-01-412-4136
  • Batteries: 1 Lithium ion batteries required.

​

User Review: 4.7/5 Stars

Now that we have covered how to do a linear regression on a graphing calculator let’s take a look at some of the top calculators used for this function.

Most individuals will opt for a graphing calculator for linear regression because there is a way to plot the graph for visualization. Those who don’t need the bulk and the price tag of a graphing calculator will do just fine with a scientific calculator.

Casio fx-115ES PLUS Engineering/Scientific Calculator

As one of Casio’s most advanced scientific calculators to date, it was designed and engineered for easy operation at any level. This unit is extremely versatile with its natural display and enhanced features, such as being able to display root forms of equations, finding derivatives, product notation templates, and advanced inequality functionality.

This Casio model is great for all general mathematics courses, Pre-Algebra, Algebra I and II, Statistics, Pre-Calculus, Trigonometry, Chemistry, Physics, and Engineering. It is also allowed for use on the PSAT/NMSQT, SAT and ACT college entrance exams, AP tests, and NCEES exams.

Texas Instruments TI-36X Pro

linear regression calculator - TI-36X Pro product image

Specification:

  • Product Dimensions: 6.1 x 3.2 x 0.8 inches
  • Item Weight: 4 ounces
  • Shipping Weight: 8.8 ounces
  • ASIN: B004NBZB2Y
  • Item model number: 36PRO/TBL/1L1
  • National Stock Number: 7420-01-246-3043
  • Batteries: 1 Lithium Metal batteries required.

User Review: 4.7/5 Stars

Texas Instruments TI-36X Pro Engineering/Scientific Calculator

This calculator is ideal for advanced algebra, trigonometry, computer science, chemistry, and statistics. One- and two-variable statistics include results for linear regression and trend line analysis.

Users can also add, subtract, multiply and divide fractions entered in traditional numerator/denominator format.

This device allows for up to three memories, 10 English/metric conversions, and eight physical constants. This model includes a protective slide-on case and runs on solar power.

Texas Instruments Ti-84 plus

linear regression calculator - Ti-84 plus Graphing calculator

Specification:

  • Screen Size: 2.8
  • Brand Name: Texas Instruments
  • Item model number: 84PL/PWB/2L1/A
  • Item Weight: 7 ounces
  • Product Dimensions: 8.8 x 6 x 2 inches
  • Item Dimensions L x W x H: 8.75 x 6 x 2 inches
  • Color: Black
  • Batteries: 1 CR2 batteries required.

​

User Review: 4.4/5 Stars

Texas Instruments Ti-84 plus Graphing calculator

This all-purpose TI-84 Plus graphing calculator is a must-have for many students and teacher’s arsenals. This fan favorite features more than a dozen preloaded apps including functionality that encourages exploration of interactive geometry, inequality graphing, and real-world data collection and analysis.

This calculator is great for standardized testing and has been approved for use on the PSAT, SAT, ACT IB and AP exams.

Texas Instruments TI-84 Plus CE

linear regression calculator - Texas Instruments TI-84 Plus CE image

Specification:

  • Brand Name: Texas Instruments
  • Item Weight: 7 ounces
  • Product Dimensions: 7.6 x 3.4 x 0.8 inches
  • Item model number: 84PLCE/TBL/1L1/W
  • Batteries: 2 AA batteries required.
  • Color: White

User Review: 4.2/5 Stars

Texas Instruments TI-81504 Plus CE Silver Edition

Ace the ACT, SAT, PSAT/NMSQT or AP exams with the help of this Texas Instruments TI-84 Plus Silver Edition 84+CE graphing calculator. This model features a graphing sequence mode that shows not only time series plots, but also cobweb or stairstep plots and phase plots.

It also comes with a variety of preloaded applications including MathPrint, Cabri Jr., CellSheet, TI Testguard 4.1, Vernier EasyData and more to simplify use; Business functions: Calculate TVM (Time-Value-of-Money), cash flows and amortization with a full-screen interactive editor.

Final Thoughts

Texas Instruments TI 84 Plus CE Graphing Calculator Review. When it comes to choosing between a scientific calculator and a graphing calculator to help with linear regression, which is considered a better tool as a linear regression calculator?

There is really no right or wrong answer here. It all comes down to what the user wants and needs.

Graphing calculators are expensive, so if users really don’t need to use the graphing function, then a scientific calculator would do just fine.

However, with the ever-expanding technology updates on graphing calculators, and with more and more functions being made available to users, linear regression could become even simpler to find and graph with a graphing calculator.

Bottom line is this, will you be using all the functions that a graphing calculator offers?

If the answer is yes, then that’s the option you want. If the answer is no, then you will simply want to go with a scientific calculator.

Either way, users really can’t go wrong when it comes to finding an ideal liner regression calculator.

Tell us, have you had any experience with linear regression? If so, which type of calculator would you choose?

Featured Image: CC by SA, Thomas.haslwanter, via Wikimedia Commons

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