I'm trying to get help with using the graphics calculator casio fx-9750G Plus. In particular...(statistics problem) trying to learn how to use the 'Distribution function' in the Stats window. Where I enter a list, and decide on using 'normal', 'binominal' and poisson distributions....

Contact Casio center that services your area or your part of the world. But it might be less expensive to just go buy another calculator (new or used) and take a better care of it.

You got yourself a prizm, learn to use it and forget about the TI84 Plus. The DiagnosticsON is a command of the TI8 84 plus. You can activate it for statistics or deactivate it. For the Casios, the determination coefficient or the correlation factors are always displayed. If the regression model you are using has a correlation coefficient it will be displayed on the same screen the statistical values are displayed.
Please read your manual, it will help you a lot.

You can download Chapter 20 here.
You can download the other chapters here.

If you want to manipulate 6x6 matrices, you can use one of the CASIO Graphing calculators, such as theCFX-9850GPlus, or the FX-9750G plus.
Graphing calculators from other manufacturers can also handle such matrices. The FX-115ES can handle matrices with dimensions up to 3x3.

No, it does not. You will need a graphing calculator such as the Casio FX-9750G Plus or the newer version FX-9750 GII.

I compared two cables and noticed that they are identical. One insulating part on the TI cable is longer than the corresponding part on the Casio cable. But no matter, let us assume that the calculators share the same 2.5 mm connection.
You can verify the hardware compatibility as follows

1. Use the Casio I/O cable to connect two TI calculators. The Casio cable wakes up the TI84PLus
   
2. Use the TI I/O cable to connect to Casio calculators. The TI cable wakes up the Casio FX9550GII but not the CFX-9750GPlus nor the Graph 35. But that may not mean too much.
3. Create a Matrix ( a 3X3 ) on one TI8xPLUS and transfer it to another TI8xPLUS using the Casio Cable.
4. Create a small (3x3) matrix on one Casio C/FX-9750G/PLUS and transfer it to another C/FX-9750G/Plus.
5. If you have been successful in any of the above you may try to transfer an object from a TI to a casio or from a Casio to a TI and the cable that worked above.

My feeling is that you cannot. I tried it
When I tried to transfer from a TI to a Casio, the Casio kept displaying RECEIVING , AC to cancel. The TI returned an Xmit ERROR
When I tried to transfer from a Casio to TI, the Casio quickly returned a Transmit Error, while the TI kept waiting for a transmission.

There may be other issues of memory organization, naming conventions, systems commands and program commands so on.

For each problem you want to have your students solve try to supply the procedures for both types of calculators. This, in my opinion, is the reasonable way to go. A benefit to you is that you learn the expert use of both types of calculators.
If you care to specify what kind of programs you intend to transfer from one to the other, one may be able to point you to some resources available on the web.

Hello,
If by calculus problem you mean derivatives of functions, integrals, extrema and such things, I am sorry to inform you that neither the Casio FX-300MS, nor the FX-991MS can handle them. The newer Casio calculator FX-991ES is capable of performing numerical differentiations and integrations. There also graphing calculators by Casio FX-9750G, FX-9860G as well as by Texas Instruments (TI 83 PLUS/TI84PLUS) that are reasonably performant in that area.

Hope it helps.

Sorry to be the carrier of bad news. The calculator FX-7400 G cannot perform matrix calculatioms. Use a Fx-9750G or other calculators.

Hello,

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.

standard deviation

calculate mean of a data set:

1. Turn calc. on or press MODE SeTUP
2.Press 3 for STAT
3. Press 1 for VAR
4.Enter values for X column
5. WHen done entering press SHIFT 1
6.Press 5
7.Press 2 to calculate the mean
8.Press =