Question about Texas Instruments TI-30 XIIS Calculator

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How do I do stats ie find a vaiance or standard deviation on my calculator

Could you help I am really new to the statistic field

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Try find here:
http://education.ti.com/downloads/guidebooks/scientific/30xii/30xiiqrg-eng.pdf

Posted on Jul 08, 2009

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How do I compute population standard deviation on the TI 84 plus?


Put the data into a list using whatever scheme you prefer. Press STAT right-arrow to bring up the STAT CALC menu. Select "1-Var Stats" and specify the list containing the data. You'll get a screen showing the various statistical values. The population standard deviation is designated by a lowercase sigma.

Jun 01, 2011 | Texas Instruments TI-84 Plus Calculator

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Can you please help me on how to calculate mean, median, mode, standard deviation calculation on casio fx-991ms scientific calculator


This will show you how to do statistics (calculate average, standard deviation, regressions etc.) as to the mode and median refer to the definitions.

TO COMPUTE STANDARD DEVIATION AND 2-VAR STATISTICS.

I assume you know the theory. I will show you the key strokes

For 1-Var statistics
Press [MODE][3:STAT] [1:1-VAR]. You are ready to enter values in the X column.
Enter a number and press [=]. Cursor jumps to second number to enter.
Keep entering numbers and pressing [=] till all numbers are in. Press the [=] key after the last one.
Press [AC] key to clear the screen.
Press [SHIFT] [STAT] (above digit 1.) then [5:Var]. Screen displays the statistical variables 1:n ;2: x bar; 3: x sigma n; 4:x sigma n-1.
Press the number corresponding to the statistical value you want, ex 1:n . The variable appears on screen. Press [=] and it will be displayed.
To display another variable press [SHIFT][STAT][5:Var][ 1,2, 3, or 4] .

To access the sum of squares sigma x^2 and the sum of data sigma x press[SHIFT][STAT][4:SUM] then [1: for sigma x^2] or [2: for sigma x]. Press [SHIFT][STAT][6:MinMax] to access minX and maxX.

For 2-var statistics
To perform 2 variable statistics you press [MODE][3:STAT] and any of the other regression options (except 1:1-Var). A two column template opens where you enter the X and Y values. When finished entering data, press [SHIFT][STAT][5:Var]. to access the different statistics. As I assumed above, you should be able to recognize what each variable means.


Apr 19, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

How do I put my calculator in statistics mode?


The TI-30XA does not have to be switched to a statistics mode, the operations are available all the time. The choice of operations are somewhat limited; the calculator offers statistics functions for one dimensional data sets only (no linear interpolation of (x,y) value pairs, for example):
  • [2nd] [CSR] - erase statistics data
  • [mib8888_17.gif] - add a number to the sample set
  • [2nd] [mib8888_18.gif] - remove a number from the sample set
  • [2nd] [FRQ] - multiple entry of the same sample value
  • [2nd] [n] - sample set size
  • [2nd] [mib8888_19.gif] - sum of all sample elements
  • [2nd] [mib8888_20.gif] - sum of the squares of all sample elements
  • [2nd] [mib8888_21.gif] - average of the sample set
  • [2nd] [mib8888_22.gif] - standard deviation (sample set is a complete set)
  • [2nd] [mib8888_23.gif] - standard deviation (sample set is a subset of a larger set)
The calculator displays "STAT" if the current sample set is non-empty.

Example: calculate the average and standard deviation of the set { 3, 4, 5, 5, 5, 5, 6 }.
  1. [2nd] [CSR] - erase stat memory
  2. 3 [mib8888_17.gif] 4 [mib8888_17.gif] 5 [2nd] [FRQ] 4 [mib8888_17.gif] 6 [mib8888_17.gif] - enter the data, note the use of [2nd] [FRQ] to enter the four occurrences of "5". Entering 5 [mib8888_17.gif] four times would have done the same.
  3. [2nd] [mib8888_21.gif] - display the average of the set, (4.714...)
  4. [2nd] [mib8888_22.gif] - display the standard deviation of the set (0.8806...)

Jan 25, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

I'm using the TI-30X IIS calculalator and cannot calculate the standard deviation. Please help! Thank you!


Press 2nd [STAT] then select CLRDATA to clear statistics data. Select 1-VAR or 2-VAR for one-variable or two-variable statistics. Press DATA and enter your data (x for 1-VAR or x and y for 2-VAR). Press 2nd [EXIT-STAT] and select N. Press STAT-VAR to see a menu of statistics variables and their values. Sx (and Sy) will give you the standard deviation, sigma-x (and sigma-y) will give you the population standard deviation.

Dec 14, 2010 | Texas Instruments TI-30 XIIS Calculator

1 Answer

How do I get the variance, the standard deviation, and the sample standard deviation in a casio FX-115Es.. Thank you


The variance is the square of the standard variation

TO COMPUTE STANDARD DEVIATION AND 2-VAR STATISTICS.

I assume you know the theory. I will show you the key strokes

for 1-Var statistics
Press [MODE][3:STAT] [1:1-VAR]. You are ready to enter values in the X column.
Enter a number and press [=]. Cursor jumps to second number to enter.
Keep entering numbers and pressing [=] till all numbers are in. Press the [=] key after the last one.
Press [AC] key to clear the screen.
Press [SHIFT] [STAT] (above digit 1.) then [5:Var]. Screen displays the statistical variables 1:n ;2: x bar; 3: x sigma n; 4:x sigma n-1.
Press the number corresponding to the statistical value you want, ex 1:n . The variable appears on screen. Press [=] and it will be displayed.
To display another variable press [SHIFT][STAT][5:Var][ 1,2, 3, or 4] .

To access the sum of squares sigma x^2 and the sum of data sigma x press[SHIFT][STAT][4:SUM] then [1: for sigma x^2] or [2: for sigma x]. Press [SHIFT][STAT][6:MinMax] to access minX and maxX.

For 2-var statistics
To perform 2 variable statistics you press [MODE][3:STAT] and any of the other regression options (except 1:1-Var). A two column template opens where you enter the X and Y values. When finished entering data, press [SHIFT][STAT][5:Var]. to access the different statistics. As I assumed above, you should be able to recognize what each variable means.

Oct 27, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

How to calculate standard deviation


TO COMPUTE STANDARD DEVIATION AND 2-VAR STATISTICS.

I assume you know the theory. I will show you the key strokes

for 1-Var statistics
Press [MODE][3:STAT] [1:1-VAR]. You are ready to enter values in the X column.
Enter a number and press [=]. Cursor jumps to second number to enter.
Keep entering numbers and pressing [=] till all numbers are in. Press the [=] key after the last one.
Press [AC] key to clear the screen.
Press [SHIFT] [STAT] (above digit 1.) then [5:Var]. Screen displays the statistical variables 1:n ;2: x bar; 3: x sigma n; 4:x sigma n-1.
Press the number corresponding to the statistical value you want, ex 1:n . The variable appears on screen. Press [=] and it will be displayed.
To display another variable press [SHIFT][STAT][5:Var][ 1,2, 3, or 4] .

To access the sum of squares sigma x^2 and the sum of data sigma x press[SHIFT][STAT][4:SUM] then [1: for sigma x^2] or [2: for sigma x]. Press [SHIFT][STAT][6:MinMax] to access minX and maxX.

For 2-var statistics
To perform 2 variable statistics you press [MODE][3:STAT] and any of the other regression options (except 1:1-Var). A two column template opens where you enter the X and Y values. When finished entering data, press [SHIFT][STAT][5:Var]. to access the different statistics. As I assumed above, you should be able to recognize what each variable means.

Aug 27, 2010 | Casio FX-115ES Scientific Calculator

2 Answers

Standard Deviation


Hello,
If you want to do statistics with this calculator you press [MODE][3:STAT]. You have then 8 options 1:1-var, 2:A+BX, etc.
For one variable statistics you press 1. Enter the values for the X variable in the template. Once finished you press [SHIFT][1](STAT) then select the value you want ( n, x bar , and the standard deviations (X sigma n) and (X sigma n-1).
Hope it helps.

Jul 30, 2009 | Casio fx-300ES Calculator

1 Answer

Trying to find standard deviation on the calculator


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....

Apr 15, 2009 | Casio FX-115ES Scientific Calculator

3 Answers

Standard deviation


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 =

Oct 05, 2008 | Casio FX-115ES Scientific Calculator

1 Answer

Standard Deviation


Texas Instruments TI-86 Statistics How-To Information The following instructions should allow you to calculate the mean and standard deviation using a TI-86 calculator.
  1. Press STAT
  2. Select EDIT
  3. Enter data into a list: [2.32 ENTER 2.43 ENTER 2.39 ENTER, etc.] Continue until all data have been entered. (use arrows keys to go to the y value, if any)
  4. EXIT until you reach the main ("blank") screen. (If you try to calculate while you're in the data menu, it thinks you're still trying to enter data!)
  5. Press STAT
  6. Select CALC
  7. Select OneVa
  8. Select LIST, NAMES, xStat(F2), Press ENTER
  9. The calculator provides Max, Min, Mean, Standard Deviation, Sum, Sigma, etc. You will be primarily interested in the Mean and Standard Deviation (sx).

Nov 15, 2007 | Texas Instruments TI-86 Calculator

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