# How to calculate covariance with fx991ES calculator . The number set also has probability data.

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).
goodluck!

Posted on Jan 02, 2017

I took statistics last semester and I don't really remember how, but after you enter your data, you press SHIFT, then STAT (on the 1 key), then I think it's under 5 (VAR), and maybe Xon-1? Eh, funny how long you remember this stuff for....

Posted on May 03, 2009

SOURCE: FIX numbers

If you press the setup key then 1 under FSE it will say TAB (0-9)? enter the amount of decimal places you want and it will change that for you.

Posted on Apr 20, 2008

SOURCE: m mod n in Casio fx991MS

there is one button ab/c beneath CALC... if u want to calculate 7 mod 4 then... u should press 7 then ab/c 4 and equal to
1, 3 ,4 which is 4*1=4 and 7-4=3 remainder...

Posted on Jun 29, 2009

You can enter combinations and permutations.

If the order of the selection matters (ie. 1st, 2nd, and 3rd place out of 40 contestants) use permutation. Enter:

IF order doesn not matter (ie. a team of 3 from 40 possible members) then it is a combination. Do the same as above, but substitute {nCr} for {nPr}. (= 9880 possible ways).

For your question: a three-digit set, selecting from 0-9. There is no specified order, it is a combination. The total n=10 (there are 10 digits in the range 0-9) and you are selecting 3.

so.... 10[nCr]3 with give the number of possible combinations.

Posted on Jul 22, 2009

This works on several different casio calculators
Press AC butoon
Press AND HOLD % /Rate Set button for 2 to 3 seconds - This is important
Press Tax+ button
Input the tax rate you want eg: 12½% = 12.5
Press the % /Rate set button again

Voila

Posted on Sep 01, 2009

×

my-video-file.mp4

×

## Related Questions:

### The dark screen on the calculator, i can't see the numbers

Turn calculator on.
Press SHIFT Mode
Scroll Down to go to next page
Press 8, then use left arrow to dim or right arrow to darken the screen.
See the screen capture below (these are for the FX82ESPlus)

For your calculator, it will be 8 CONT

Mar 15, 2016 | Casio FX991ES Scientific Calculator

### How to fix mirror problem in fx-991ES calculator?

The calculator was probably subjected to a hacking procedure. Buy another one.

Jul 11, 2014 | Casio FX991ES Scientific Calculator

### Replace screen

Given the cost of the calculator, it probably will be much cheaper to just replace the calculator rather than paying for and installing a new screen.

Jan 30, 2014 | Casio FX991ES Scientific Calculator

### How to compute mean please give samples

Read the Appendix of the manual. It contains examples of each type of calculations.
Put calculator in STAT Mode, select 1-var stat, enter the data and get the mean as x_bar
In the manual see the examples 052, 053 054, ... on pages 16, 17 and following.

Dec 11, 2013 | Casio FX991ES Scientific Calculator

### Memory store

You cannot save anything on this calculator. Once you change Mode or turn OFF calculator, everything saved evaporates.

Dec 04, 2013 | Casio FX991ES Scientific Calculator

### I dropped my FX991ES PLUS calculator and cracked the screen. Can I replace the screen?

If you find someone able and willing to do it, the repair will cost more than simply getting a new calculator.

Nov 27, 2013 | Casio FX991ES Scientific Calculator

### How to calculate mode with caso fx-991ES

MOD simply calculates the remainder that is left over after dividing by the MOD parameter.
For example, 10MOD7 = 3 since you can only divide 7 into 10 once, leaving a remainder of 3.
For larger numbers, eg 389487MOD31 you start by dividing 389487 by 31, which gives 12564.09677 (on the display), however you only want the fractional part so subtract 12564 to give 0.0967741935 . This includes the lower value digits that were previously hidden. Then multiply this result by 31 which gives 2.999999999 on the display. Since the result of a MOD calculation has to be a whole number, the answer needs to be rounded to 3. If the answer doesn't easily round to a whole number, it is likely that you have gone beyond the calculators working capacity.
An alternative method is to take the integer part of the first result (12564) and multiply it by 31 to get 389484, then subtract this from 389487, giving the answer of 3.

Feb 23, 2013 | Casio FX991ES Scientific Calculator

### Finding value of log with base 10

Use the "log" key. For example, to calculate the log base 10 of 2, press
"log" "2" =

Mar 29, 2012 | Casio FX991ES Scientific Calculator

### Portfolios with more than one asset: Given the returns and probabilities for the three possible states listed here, calculate the covariance between the returns of Stock A and Stock B. For convenience,...

ProbabilityReturn(A)Return(B)Good0.20.300.50Ok0.50.100.10Poor0.3-0.25 -0.30

Portfolios with more than one asset: Given the returns and probabilities for the three possible states listed here, calculate the covariance between the returns of Stock A and Stock B. For convenience, assume that the expected returns of Stock A and Stock B are 11.75 percent and 18 percent, respectively.

Feb 23, 2012 | Texas Instruments BA-II Plus Calculator

### I want to remove the word fix from the top of the calculator

You've got the display set to fixed decimal notation. To change it, press SHIFT MODE 7 to switch to a scientific notation or SHIFT MODE 8 and then 1 or 2 to switch to one of the norm display modes.

norm1 switches to scientific notation if the magnitude of the number is less than 0.01 .
norm2 switches to scientific notation if the magnitude of the number is less than 0.000000001 .

Jun 07, 2011 | Casio FX991ES Scientific Calculator

## Open Questions:

#### Related Topics:

3,631 people viewed this question

Level 3 Expert

Level 3 Expert