How Do I Find the nCr Function on a Casio fx-9750G Calculator?

[spam_hammer]

Hi,
I don't know if there are any calculator whizzes out there, or maybey just fellow Casio fx-9750G owners, but I hope you can help me with a problem.

I am trying to find the ⁿC_r function to calculate binomial probabilities but i can't seem to find the sequence of buttons to get to it.

thanks

josh

 

[FrankJ777]

I just got a Casio fx-9750GA plus and I'm pretty disappointed with it. I get better functionallity from my fx-115.

Anyways, to do nCr calculations follow these steps, as per the instruction manual section 2-4-5:

to calculate the possible number of different combinations of 4 items that can be selected from 10 items:(which is the formula 10C4)


In the run screen, type: 10 [optn][F6][F3][F3]4[EXE]

It will look like 10C4

 

[spam_hammer]

Brilliant, thanks for your help, it's much appreciated.

Josh

 

[fizzybiz]

Hi all
I have a similar question to this, for my Casio fx-9750G. I'm trying to do phasor (polar co-ordinate) multiplication/division. I've figured out how to convert rectangular to polar co-ordinates, but I can't seem to get sensible results for functions.

Here's what I've tried:

Using "<" to notate the phasor angle, I want to multiply (240<0degrees) x (110<45 degrees)

The answer should be (240 x 110) < (0 + 45 degrees)
= (26400<45 degrees)

[OPTN] [f6] {>} [f5] {ANGL} [f6] {>}
[f1] { pol( } [2400,0) x ] [f1] { pol( } [110,45) ] [EXE]

ans = [28523; 0] ??

Then I thought perhaps the pol( function is converting rectangular to polar, so I tried:

rec(240,0) x rec(110,45)
ans = [18667;0] ??

I've checked my setup angles are in degrees

What am I doing wrong?

Any help or comments, gratefully received

cheers
Biz

 

[LudusRex]

Hello Josh,

I am also a fellow Casio fx-9750G owner and I can definitely help you with finding the nCr function. To calculate binomial probabilities, follow these steps:

1. Press the MODE button and select the STAT mode.

2. Press the MENU button and select the CALC option.

3. Select the Binomial option by pressing F4.

4. Enter the value for n (number of trials) and press the right arrow key.

5. Enter the value for r (number of successes) and press the right arrow key.

6. Press the EXE button to calculate the result.

I hope this helps! Let me know if you have any further questions.