Question about Texas Instruments TI-30 XIIS Calculator

Hello,

Let us start with a review of the formula for the binomial distribution

**f(r;n,p)=n!/(r!(n-r)!)x(p^r)x(1-p)^(n-r) **

But **n!/(r!(n-r)!)=(nCr)** you get

f(r;n,p)= **(nCr)x(p^r)x(1-p)^(n-r) **

Exemple : n=25, r=6, p=0.7

**f(6;25,0.7)= **25** [PRB] [-->] **6 **[ x ] {**0.7**[ ^] **6 **}[ x ]{**0.3**[ ^ ]**19**}**

The arrow means a horizontal scroll once to select the (nCr) function. [ x ] stands for the multiplication sign.

[ ^] is the raise to the power key

The { } are used here as parentheses to make formula legible.

Hoe it helps

Hope it helps

Hope it helps.

Posted on Sep 15, 2009

Five items are selected at random from a production line. Whiat is the probability of selecting exactly two defectives if it is known that the probability of a defective item from this production system is 0.05?

P(2)= __ 5! __0.05^2(1 - 0.05)^5-2

2!(5-2)!

Posted on Sep 23, 2010

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Posted on Jan 02, 2017

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...

There is no such button. The factorial function is in the probability submenu of the math menu. Press MATH left-arrow 4 to access the factorial.

Jul 23, 2014 | Texas Instruments TI-84 Plus Calculator

The only known equation for the cumulative binomial distribution is the sum of the individual binomial probabilities. Some more sophisticated (and more expensive) calculators have that equation built in, but the 30xii does not.

If n>30 and n*p>5 and n*(1-p)>5 then you can approximate the cumulative binomial with the normal probability function, but again the 30xii does not have that built in.

If n>30 and n*p>5 and n*(1-p)>5 then you can approximate the cumulative binomial with the normal probability function, but again the 30xii does not have that built in.

Apr 14, 2014 | Texas Instruments TI-30 XIIS Calculator

See cap images below

Oct 22, 2013 | Texas Instruments TI-34II Explorer Plus...

You'll find the binomial distribution functions in the DISTR menu (press 2ND [DISTR]).

Sep 27, 2010 | Texas Instruments TI-83 Plus 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

Hello,

Sorry, but you information is wrong, to find the binomial distribution use the PROB menu not the STAT menu. Its name is randBi

[2nd][MATH][F2:PROB] scroll right.

Hope it helps.

Sorry, but you information is wrong, to find the binomial distribution use the PROB menu not the STAT menu. Its name is randBi

[2nd][MATH][F2:PROB] scroll right.

Hope it helps.

Oct 10, 2009 | Texas Instruments TI-86 Calculator

Hello,

This is for the TI-30 XIIS. It should work for you once you find the (nCr) key or the menu item under PRB key. If you know the formula skip to Exemple

Let us start with a review of the formula for the binomial distribution

**f(r;n,p)=n!/(r!(n-r)!)x(p^r)x(1-p)^(n-r) **

But**n!/(r!(n-r)!)=(nCr)** you get

f(r;n,p)=**(nCr)x(p^r)x(1-p)^(n-r) **

**Exemple : n=25, r=6, p=0.7 **

**f(6;25,0.7)= **25** [PRB] [-->] **6 **[ x ] {**0.7**[ ^] **6 **}[ x ]{**0.3**[ ^ ]**19**}**

The arrow means a horizontal scroll once to select the (nCr) function. [ x ] stands for the multiplication sign.

[ ^] is the raise to the power key

The { } are used here as parentheses to make formula legible.

Hope it helps

This is for the TI-30 XIIS. It should work for you once you find the (nCr) key or the menu item under PRB key. If you know the formula skip to Exemple

Let us start with a review of the formula for the binomial distribution

But

f(r;n,p)=

The arrow means a horizontal scroll once to select the (nCr) function. [ x ] stands for the multiplication sign.

[ ^] is the raise to the power key

The { } are used here as parentheses to make formula legible.

Hope it helps

Oct 09, 2009 | Texas Instruments TI-30 XIIS Calculator

The binomial probability functions may be found in the DISTR menu. Bring up the menu by pressing 2ND [DISTR].

Jun 05, 2009 | Texas Instruments TI-83 Plus Calculator

Yes, eleven million is rather extreme for the binomial distribution. For this large a value the binomial distribution is sufficiently indistinguishable from the normal approximation.

Apr 15, 2009 | Texas Instruments TI-84 Plus Calculator

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p=0.70, n=7,r=5

How do you apply this for > or < a number of results?

What about for > or < a number of results? i.e. n=120, p=.02, and r>1

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