Question about Texas Instruments TI-30XA Calculator

How to calculate standard deviation using a TI-30XS calculater

SOURCE: standard deviation

Enter the first number, 1.

Hit the σ+ (Sigma+) key. ( n=1 will appear in the window)

Enter the second number, 1.

Hit the σ+ (Sigma+) key. (n=2 will appear in the window)

. . . . .

Enter the last number, 7.

Hit the σ+ (Sigma+) key. (n=7 will appear in the window)

Hit 2nd x2 (by hitting the 2nd key you are actually selecting the x-bar written above the key.) This gives you the mean.

Hit 2nd sqrt(x). This gives you the sample standard deviation which we will use in class.

Make sure you turn your calculator off and on for new data sets.

Posted on Jan 26, 2008

SOURCE: Standard Deviation

When I enter some series of data and check the descriptive statistics, every time I come to the standard deviation the calculator shows me Error 1 message.

Posted on Oct 20, 2008

SOURCE: standard deviation

Is there a PDF with the Statistical procedures for this product? I bought my Casio FX-115 used (second hand). No instructions. I need help using the Statistical functions for my Stats classes:

Correlation Coefficient

Standard Deviation/Variance

Chi-Square

x-x(bar) summations

HELP!

Posted on Nov 19, 2008

SOURCE: finding standard deviation on Ti-30XA calculator

You can get instructions from;

http://www.geocities.com/calculatorhelp/ti30xa.htm

It's straight forward to follow.

Posted on Apr 18, 2009

SOURCE: Standard Deviation

Hello,

You must first enter the data you are doing statistics on.

After you finish entering the data, do as the figure below describes.

Hope it helps.

Posted on Sep 20, 2009

take you sales for the last year and put it into a calculator, then press plus + and then 6 and then the per cent key %

Or

Take your sales from last year, multiply by 6 and then divide by 100. That is the amount you will increase. Add it to last years sales.

Or

Take your sales from last year, multiply by 6 and then divide by 100. That is the amount you will increase. Add it to last years sales.

Jan 09, 2017 | The Office Equipment & Supplies

Sorry there is no "reset" for your printing calculator.

May 21, 2015 | Office Equipment & Supplies

with one of these

http://www.dx.com/p/network-usb-2-0-lpr-printer-server-10-100mbps-ethernet-31570?tc=AUD&gclid=CP-1weaL9MICFRUIvAodEpYAZA#.VKXrgHs_zLk

Only thing is I did not find windows 8 drivers for this printer as standard so you may run into trouble with computers running windows 8 as each computer has to have the exact operating system printer driver designed for its exact operating system .

Unless you can find windows 8 drivers somewhere on the internet

http://www.dx.com/p/network-usb-2-0-lpr-printer-server-10-100mbps-ethernet-31570?tc=AUD&gclid=CP-1weaL9MICFRUIvAodEpYAZA#.VKXrgHs_zLk

Only thing is I did not find windows 8 drivers for this printer as standard so you may run into trouble with computers running windows 8 as each computer has to have the exact operating system printer driver designed for its exact operating system .

Unless you can find windows 8 drivers somewhere on the internet

Jan 01, 2015 | Office Equipment & Supplies

volume is calculated by finding the area multiplied by the length or height . That is Pi X radius squared X length

example --tube 6"dia 12"long what is the volume?

Example 3.1417 X radius 3" Squared =3.1417X9sq " = 28.2740sq" X length 12" =338.688 cubic"

If you want the volume of an engine cylinder , it is the same formula and the length is the stroke of the piston ( distance from TDC to BDC )

example --tube 6"dia 12"long what is the volume?

Example 3.1417 X radius 3" Squared =3.1417X9sq " = 28.2740sq" X length 12" =338.688 cubic"

If you want the volume of an engine cylinder , it is the same formula and the length is the stroke of the piston ( distance from TDC to BDC )

May 20, 2014 | Office Equipment & Supplies

Circumference of a Circle: 2 x pi x radius - OR - pi x diameter,

or if you need some sphere calculations?

Sphere Surface Area: 4 X pi X radius squared OR

pi X diameter squared Sphere Volume: 4/3 X pi X radius cubed OR

( pi X diameter cubed ) / 6

By the way.......... "pi" = 3.1415926536

or if you need some sphere calculations?

Sphere Surface Area: 4 X pi X radius squared OR

pi X diameter squared Sphere Volume: 4/3 X pi X radius cubed OR

( pi X diameter cubed ) / 6

By the way.......... "pi" = 3.1415926536

Apr 29, 2014 | Office Equipment & Supplies

Use the words: decimal part, not decimal fractin

**Any number whose decimal part is periodic (has a recurring pattern that repeats indefinitely) is equivalent to a rational number, IS a rational number**

0.345 345 345 ... =345/999=115/333

In the following screen captures, discard the last digit if it does not belong to a period. It is the effect of rounding up of the calculator

**Period is 345**

**Period is 1**

Period is**09**

Period is** 79**

In general, if you have a decimal part of the form 0.d_1 d_2 d_3....d_n d_1 d_2 d_3 ...d_n ... where d_1 is the first digit of the period, d_2 is the 2nd digit of the period, ..., d_n is the n-th digit (and the last one) of the period, then the fraction representation of

0.**d_1d_2...d_n** d_1d_2... d_n ...=(**d_1d_2...d_n**)/(99...9) where the number of 9's in the denominator is equal to the number of digits in the period.

Once the fraction is found, one should reduce it to its simplest form.

0.345 345 345 ... =345/999=115/333

In the following screen captures, discard the last digit if it does not belong to a period. It is the effect of rounding up of the calculator

Period is

Period is

In general, if you have a decimal part of the form 0.d_1 d_2 d_3....d_n d_1 d_2 d_3 ...d_n ... where d_1 is the first digit of the period, d_2 is the 2nd digit of the period, ..., d_n is the n-th digit (and the last one) of the period, then the fraction representation of

0.

Once the fraction is found, one should reduce it to its simplest form.

Mar 02, 2014 | Office Equipment & Supplies

you cant you have to get a scientific calculator with the carrot symbol like this ^

Sep 14, 2013 | Office Equipment & Supplies

454 grammes to a pound ,use the calculator in the computer but roughly that 1cwt or 100 pounds divided by 14 ,which is 14 pounds to one stone ,wow this takes me back to pre decimalisation

May 19, 2013 | Office Equipment & Supplies

The circumference of a circle is C=2 * pi * r or C= pi * d.

What do we know? C=47.1 and pi.

What are we trying to calculate? d

Put what we know in the equation and solve for d.

47.1 = pi * d

To isolate d, we have to divide both sides by pi.

47.1

------ = d

pi

I get 14.99' or approximately 15' as the diameter.

Good luck,

Paul

What do we know? C=47.1 and pi.

What are we trying to calculate? d

Put what we know in the equation and solve for d.

47.1 = pi * d

To isolate d, we have to divide both sides by pi.

47.1

------ = d

pi

I get 14.99' or approximately 15' as the diameter.

Good luck,

Paul

Apr 17, 2013 | Office Equipment & Supplies

move the decimal 2 places to the right. 7%

Jan 27, 2012 | Office Equipment & Supplies

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how to calculate the standard divation of 1,3,4,6,9,19 using the TI-30xs calculator

How the **** does this thing work!

I need to find standard deviation for 6 numbers on a TI 30 x a

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