Question about Texas Instruments TI-30XA Calculator

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Posted on Jan 02, 2017

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SOURCE: TI-30xa Calculator Reciprocal Key

It does. For instance, to get the reciprocal of 4, enter the following sequence: 4 [1/x] (this last key to be found third row down, second black key in). The decimal 0.25 will appear as the result. Convert this, if you want, to the fraction 1/4 by pressing the yellow function key [2nd], then {F<>D] located bottom, far left. Hope that's what you wanted!

Posted on Oct 04, 2007

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SOURCE: cant get M2 off of my TI-30XA calculator

Press 0 STO 2 to clear your memory 2 (M2). to clear M1 and M3 press 0 STO 1 or 0 STO 3

Posted on May 27, 2008

SOURCE: TI-30XA

Use the inverse log key sequences "2nd LN" or "2nd LOG" depending on whether you are using natural logs or logs to base 10

Posted on Dec 31, 2008

SOURCE: how do I calculate the mean on the TI-30XA

Hello,

Here is an exemple from the manual.

Hope it helps.

Posted on Sep 17, 2009

Suppose that astronomers estimate that large meteors (above a certain size) hit the earth on average once every 100 years (lamda = 1 event per 100 years), and that the number of meteor hits follows a Poisson distribution. What is the probability of k = 4 meteors hits in the next 100 years?

See solution of the problem below

See solution of the problem below

Mar 02, 2016 | Texas Instruments TI 30XIIS Scientific...

First, the Poisson Distribution describes events which have a small probability of occurrence at any very precise single value, like 3.546732190, but which nonetheless occur very very frequently in a range of values. Also the mean or average or expected value are the same as the variance, in your case, three (I think you meant three).

So looking up the tables for this (or plugging it in Excel) the prob x=4 exactly is 0.1680

So looking up the tables for this (or plugging it in Excel) the prob x=4 exactly is 0.1680

Mar 23, 2014 | Sharp EL-738 Scientific Calculator

The poissonpdf function computes a probability at x for the discrete Poisson distribution with the specified mean u, which must be a real number >0. x can be an integer or a list of integers.

As an example, to compute the probability with mean 1.9 and x=4, press

2ND [DISTR] ALPHA [C]

enter 1.9 on the first line and press ENTER

enter 4 on the second line and press ENTER

press ENTER again.

This will paste poissonpdf(1.9,4) onto the command line. Press ENTER again to see the result (about 0.08).

As an example, to compute the probability with mean 1.9 and x=4, press

2ND [DISTR] ALPHA [C]

enter 1.9 on the first line and press ENTER

enter 4 on the second line and press ENTER

press ENTER again.

This will paste poissonpdf(1.9,4) onto the command line. Press ENTER again to see the result (about 0.08).

Oct 05, 2012 | Texas Instruments TI-84 Plus Calculator

7 LOG / ( 6 * 7 LOG - 2 LOG ) =

Mar 30, 2011 | Texas Instruments TI-30XA Calculator

The following examples will demonstrate how to
convert decimals into fractions using the TI-30Xa and TI-30Xa Solar.
Please be aware that TI-30Xa Solar School Edition calculators do not
have this functionality.

**Example**: Convert .25 to 1/4

- Input .25, press [2nd][<--] (says F<>D above it).

**** F<>D means fraction to decimal, decimal to fraction. **

**Example**: Convert 1.38 to 1_19/50

- Input 1.38, press [2nd][<--].

**Example**: Convert 9.75 to 9_3/4

- Input 9.75, press [2nd]{<--].

- Input .25, press [2nd][<--] (says F<>D above it).

- Input 1.38, press [2nd][<--].

- Input 9.75, press [2nd]{<--].

Mar 08, 2011 | Texas Instruments TI-30XA Calculator

That function raises e to a number. If you want the value of e, raise e to the first power.

Press 1 2nd [e^x] =

Press 1 2nd [e^x] =

Feb 18, 2011 | Texas Instruments TI-30XA Calculator

No. There are some keys on the TI-30XA that may make you think so, but they are statistical operations. For example, you can enter values using the Sigma+ key and the TI-30XA can give you the sum of the values entered, sum of the squares, mean value, standard deviation and so on.

You cannot do calculations like "Give me the sum of all integers from 1 to 100" with the TI-30XA, you'd need a far more sophisticated calculator.

You cannot do calculations like "Give me the sum of all integers from 1 to 100" with the TI-30XA, you'd need a far more sophisticated calculator.

Jan 06, 2011 | Texas Instruments TI-30XA Calculator

The key is accessed by sequence [2nd] 8

Eg; Selecting 3 out of 5

5C3 is entered as 5 [2nd][8] 3 [=], result is 10

Eg; Selecting 3 out of 5

5C3 is entered as 5 [2nd][8] 3 [=], result is 10

Mar 22, 2010 | Texas Instruments TI-30XA Calculator

You can't, the TI-30XA is a one variable statistical calculator, so you can't do two variable statistics with it.

You need to step up to the TI-35X or the TI-30X IIS

You need to step up to the TI-35X or the TI-30X IIS

Oct 02, 2008 | Texas Instruments TI-30XA Calculator

Nope, the TI-30XA is a one variable stat calculator.

Two variable stat is done OK by TI-36X or TI-30X IIS, also comparable HP or Casios

Two variable stat is done OK by TI-36X or TI-30X IIS, also comparable HP or Casios

Sep 17, 2007 | Texas Instruments TI-30XA Calculator

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