Does Staples have a graphing calculator?

Staples offers a wide selection of graphing calculators for students, teachers and professionals. These calculators are able to compute complicated mathematical calculations quickly and easily.

What is the difference between TI-84 Plus and CE?

The CE is the only TI-84 Plus with a total redesign that looks more modern and is way more sleek than the older design. The CE is has all the same features as the C Silver edition, but it has a faster processor. In practice the CE is about 2X as fast as the C Silver Edition.

Is TI-84 Plus CE better than TI-84 Plus?

When comparing the TI-84 Plus vs. the TI-84 Plus CE the most obvious difference is the color display of the CE. It’s not the only difference, though. The CE is smaller and has a better, rechargeable battery, and has continued to get software updates.

How do you find the least squares line?

Steps

1. Step 1: For each (x,y) point calculate x2 and xy.
2. Step 2: Sum all x, y, x2 and xy, which gives us Σx, Σy, Σx2 and Σxy (Σ means “sum up”)
3. Step 3: Calculate Slope m:
4. m = N Σ(xy) − Σx Σy N Σ(x2) − (Σx)2
5. Step 4: Calculate Intercept b:
6. b = Σy − m Σx N.
7. Step 5: Assemble the equation of a line.

What is the least squares regression line?

A regression line (LSRL – Least Squares Regression Line) is a straight line that describes how a response variable y changes as an explanatory variable x changes. The line is a mathematical model used to predict the value of y for a given x. No line will pass through all the data points unless the relation is PERFECT.

What is the best graphing calculator?

When you have an idea of what features you need, check out our selections of the best graphing calculators.

• Best Overall: Texas Instruments TI-84 Plus.
• Best Value: Casio FX-9750GII.
• Best Color Graphing Calculator: Casio PRIZM FX-CG50.
• Best Touchscreen Graphing Calculator: HP Prime.

What is considered a basic calculator?

Basic calculators perform most arithmetic operations. You’ll need a scientific calculator for advanced calculus and geometry functions. All basic calculators let you do the four basic math functions: add, subtract, multiply and divide.

What does TI-84 Plus CE stand for?

Color Enhancement
CE is an abbreviation of Color Enhancement. The TI-84 Plus has a few more unrecognizable programs, those of which you’ll never really use.

Why is TI-84 so expensive?

But with essentially a monopoly on graphing calculator usage in classrooms, Texas Instruments can charge a premium. The batteries are even not rechargeable like a cell phone.” He estimates a TI-84 Plus costs $15-20 to manufacture and has a profit margin of over 50 percent for Texas Instruments.

Is least squares regression the same as line of best fit?

We use the least squares criterion to pick the regression line. The regression line is sometimes called the “line of best fit” because it is the line that fits best when drawn through the points. It is a line that minimizes the distance of the actual scores from the predicted scores.

How do you find A and B in the least squares regression line?

How to do linear regression on TI-84 CE?

Calculator Directions for Linear Regression on TI-84 CE Before you begin, clear out any equations in the function editor. STEP 1: Enter the data into two lists L 1 and L 2. Press Choose 1:Edit Clear Lists if there is data. Use to move curser to cover L1 at the top of the list. Press Repeat the process for L2.

Is the Texas Instruments TI 84 Plus graphing calculator compatible?

>Texas Instruments TI-84 Plus Graphing Calculator Texas Instruments TI-84 Plus Graphing Calculator | staples.ca The TI-84 Plus is fully compatible with the TI-83 models. The new generation combines the familiarity of its predecessors’ keystrokes, functions and Apps with more speed, more memory and more of your favourite Apps.

How to calculate a correlation coefficient on a TI-84?

A correlation coefficient is a measure of the linear association between two variables. It can take on a value between -1 and 1 where: You can use the following steps to calculate the correlation coefficient between two variables on a TI-84 calculator: Step 1: Turn on diagnostics.

Who are the teachers that use TI calculators?

Jeff McCalla is a mathematics teacher at St. Mary’s Episcopal School in Memphis, TN. He cofounded the TI-Nspire SuperUser group, and received the Presidential Award for Excellence in Science & Mathematics Teaching. C.C. Edwards is an educator who has presented numerous workshops on using TI calculators.