# Linear Regression with a EL-520W Calculator

Can you explain how to do linear regression with the Sharp EL-520W calculator?

Posted by on

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
Good luck!

Posted on Jan 02, 2017

SOURCE: how to calculate

It's very simple: the calculators have a default base 10 so that log x it's log x base 10 so here is some logs:
log x base y = log x / log y
log (x*y) = log x + log y
log (x/y) = log x - log y
Hope it's helped

Posted on Jul 06, 2009

http://www.sharpusa.com/products/support/view_all_models/0,2326,32,00.html
I don't see that model listed...are you positive on exact model number?

Posted on Sep 05, 2009

Hello,
No need to enter R squared. If it has meaning it will display in the stats variables screen ( 2nd F7 ).
Hope it helps.

Posted on Sep 14, 2009

Hello,
I am aware that the solution provided below is valid for the CFX/FX-9850G/GB/ but I will supply it. I remain convinced it will help you for your calculator.
In the main menu select [STAT] icon to enter Stat mode and display the statistical data lists. Use the satistical data lists to input data and perform statistical calculations. Use the arrows to move the highlighting around the lists.
Exemple: Enter the following values in List 1
1st line enter 90 [EXE]
2nd line 85 [EXE]
3 79 [EXE]
4 75 [EXE]
5 70 [EXE]
6 68 [EXE]
7 56 [EXE]

When finished you press [F2:Calc], then [F1:1Var] and the statistical results appear on screen.
Title of screen : 1-Variable
x bar =74.7142857
Capital Sigma x= 523
Capita Sigma X squared = 39851
x lower case sigma n = 10.5249945
x lower case sigma n-1= 11.3682934
n = 7
Scroll down with Down arrow to access other data
minX =56
Q1=68
Med =75
Q3=85
Xbar -x lower case sigma n =64.1892911
x bar + x lower case sigma n = 85.2392802
maxX=90
Mod=90

All you have to do now, is to look at the theory you learned and interpret what these values mean.

Hope it helps.

Posted on Oct 04, 2009

My Sharp El-573 calculator is in scientific mode and nothing I do will put it back in regular arithmetic mode. Please tell me how to switch it back. Thanks for any help! Barbara

Posted on Jul 01, 2010

×

my-video-file.mp4

×

## Related Questions:

### INTERPOLATING LINEAR REGRESSION USING sHARP CALCULATOR EL-W535HT WriteView

Hi there,

On your Sharp EL-W535 press MODE and choose 1 for STAT. Press 1 for line (linear regression). You should see a table with three columns (x, y and Freq). Type in all your x values (press value =), then use your arrow keys to direct the blue block / cursor back to the top of the y-column. Type in all the y-values. Once you have finished inputting your data, press CHANGE.
To find the regression equation press ALPHA open bracket and equal. This will give you the y-intercept.
Press ALPHA and the close bracket button and equals. This will give you the gradient. You can also interpolate / extrapolate. Type in your x value press 2ndF and close bracket button, this will give you the y-value at x.
You can do the same to find x but use the open bracket button instead.
Visit www.mathsatsharp.co.za for more information and a full user friendly manual :)

Aug 20, 2017 | Sharp Office Equipment & Supplies

### Interpolation mannual in fx-4800P - Fixya

www.fixya.com/support/t22818601-interpolation_mannual_in_fx_4800p
Jan 11, 2014 - interpolation mannual in fx-4800P - Casio Rare Vintage Scientific question. ... SOURCE: how can we do linear interpolation in casio fx-991ES ...

### interpolate how can interpolate linear regression by casio ...

www.fixya.com/support/t22818666-interpolate
Jan 11, 2014 - interpolate how can interpolate linear regression by casio fx-4800P -Casio ... SOURCE: how can we do linear interpolation in casio fx-991ES ...

### how to perform linear interpolation manually and on casio fx ...

? 6:39
Jan 7, 2015 - Uploaded by Yabets Jab
In this video you can simply understand how to find a value of a given missing number in a table on Casio fx ...Missing: 4800p

### Linear Regression on a Casio calculator - YouTube

? 6:25
Oct 31, 2012 - Uploaded by cpobyrne1
How to perform a linear regression on a Casio scientific calculator. Example uses a ... A Casio fx-83WA calculator is used for the demonstration. .... Lagrange Interpolation Easily Explained on Casio fx-991ES Calculator!Missing: 4800p

Jan 05, 2016 | Casio Office Equipment & Supplies

### How to model real life data?

What is the question?
Put your calculator in STAT mode (2-var statistics or regression )
Enter your data in two lists, preferably sorted according to the x-value
Choose a regression model from the ones available and get the calculator to give you the best fit.
However to see which regression model best fits you data you need a graphing calculator to draw the scatter plot, then superpose on the scatter plot the curve of best fit given by the regression model.

Once you accept a model as the most suited one, you can use the equation of the curve to predict a y-value given an x-value (what ever REAL LIFE meaning they might have)
.

Dec 11, 2013 | Sentry CA 756 Calculator

### My calculator won't let me graph or find the linear regression.

You have attempted to use, edit, or delete an archived variable. For example, the expression dim(L1) produces an error if L1 is archived

Nov 03, 2017 | Texas Instruments TI-83 Plus Calculator

### My r correlation doesn't show when I'm in linear regression?

You must turn the Diagnostics ON. Open the CATALOG of commands by pressing [2nd[0]. Press the key that has Letter D next to it. From that point in the catalog, scrool Down to get to DiagnosticsON. Highlight the command and press Enter. The calculator will echo the command in the Main screen. Press ENTER.
From now on the coefficient of determination ( the square of R) will be displayed along with other statistics.

Feb 03, 2012 | Texas Instruments TI-84 Plus Calculator

### Am trying to calculate corelation on a Casio fx-9750GII,

Use arrows to highlight STAT icon and press EXE.
Enter your data in two lists (x-values in L1, Y-values in L2)
Press F2 to activate the CALC Tab at the bottom of screen.

This is what you see.

Press F3 to activate the REGression tab.
This is what you will see: the TABs at the bottom of screen.
Each tab corresponds to a regression model: X-linear, X2 quadratic, etc.

If you press F3:X^2, you get the following

You see the parameters of the regression equation, the coefficient of determination r^2, and the Mean Square error. No correlation coefficient is defined for this regression model.
For other models like linear, logarithmic, power and exponential regressions, the correlation coefficient is defined and is thus displayed with the regression equation. It is the r-value.

Jul 31, 2011 | Casio FX-9750GPlus Calculator

### How to calculate the coefficient of linear correlation using casio cfx-9850 Ga plus

Although the coefficient of correlation is well defined for a few regression models, you do not calculate it directly because your calculator does that for you.
I could just tell you that it is displayed along with the statistical results (equation of best fitting curve, ) but if you do not know how to do that you will just shoot my post. If you know how to do a linear regression, stop right here and ignore what follows.

For those interested: How to do a regression on the calculator
I am sorry but I will have to assume that you know how to enter the data through the [MENU][STAT].

1. After you finish entering all the data
2. Press [F1:Graph], select Gph1, Gph2, or Gph3.
3. Once the graph of the experimental data is drawn, you will have access to the diverse regression models.
5. [X:Linear]
6. [Med-Med],
8. [Cubic;X^3]
9. [Quartic: X^4].
10. Press [F6] to scroll right to access the others
11. [Logarithmic:LOG],
12. [Exponential :EXP],
13. [Power :Pwr] and
14. [Sinusoidal: Sin]
After you select a model and press [EXE], the screen displays the equation and its various coefficients, a correlation coefficient if it has meaning, etc.
On that same screen, you have a menu option [F6:Draw]. If you select it, the regression curve will be drawn on the same screen as your statistical graph. This allows you to judge if the fit is good. If it is not, you have the option to choose another model.
The other option [F5:Copy] allows you to save the regression equation in the Y1, Y2, etc. variables.

Jan 03, 2010 | Casio CFX 9850GA Plus Calculator

### Do i have only one type of exponencial regression o my 9850gb plus?

Hello,
Th CFX-9850GB Plus is programmed to perform 10 types of regressions, namely
LinearReg: Linear y=ax+b
Med-Med also linear y=ax+b
Cubic: y=ax^3+bx^2+cx+d
Quartic: y=ax^4+bx^3+cx^2+dx+e
LogReg, logarithmic: y=a+b*ln(x)
ExpReg, exponential y=a*e^(bx)
PowerReg, power: y= ax^b
SinReg, sinusoidal: y=a*sin(bx+c) +d
LogisticReg, logistic; y= c/(1+a*e^(-bx))

There may be more regression models appropriate for more advanced (specialized) statistics but the ones in the list are all the CFX-9850GB plus offers. However, since the calculator knows a programming language, you may want to implement a particular model.

Hope that helps.

Oct 24, 2009 | Casio CFX 9850GB Plus Calculator

### Linear regression

I already answered a Q like this - you can't do 2 variable statistics on the TI-30XA, it only does one variable statistic.

To do 2 variable stat like linear regression, you need the TI-36X or TI-30X IIS, or comparable HP, casio etc

May 17, 2008 | Texas Instruments TI-30XA Calculator

## Open Questions:

#### Related Topics:

579 people viewed this question

Level 2 Expert

Level 3 Expert