Question about Texas Instruments TI-30XA Calculator

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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

Posted on Mar 29, 2010

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Posted on Jan 02, 2017

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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

The number of combinations of **n objects taken r at a time **has a reserved symbol **nCr**. On calculators it has a special key (or shifted key) marked **nCr.**

By definition** nCr=(n!)/((r!)*(n-r)!)**=**nC(n-r)**

In what follows, I am using parentheses to enclose what is in the denominators). So

10!/(8!2!)=10C2 or 10C8 =45 (they have the same value)

10!/(9!1!)=10C9=10C1=10

10!/(10!0!)=1

By definition

In what follows, I am using parentheses to enclose what is in the denominators). So

10!/(8!2!)=10C2 or 10C8 =45 (they have the same value)

10!/(9!1!)=10C9=10C1=10

10!/(10!0!)=1

Feb 04, 2014 | Texas Instruments TI-34 Scientific...

See cap images below

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

Yes. Use the 2nd [nCr] function.

52 2nd [nCr] 5 = will calculate the number of 5-card poker hands that can be dealt from a deck of 52 cards.

52 2nd [nCr] 5 = will calculate the number of 5-card poker hands that can be dealt from a deck of 52 cards.

Apr 06, 2010 | Texas Instruments TI-30XA Calculator

The binomial probability distribution is defined as

P(r;p;n) =(nCr)(p^r)*(1-p)^(n-r), where n is the number of trials, p the probability of success, and r the expected result.

Let n=20, r=7, p=0.15 ( I do not know wether this exemple has any meaning in the context of your problem, but you have to enter values that mean something to you.) I am only showing you the key strokes

To enter 20C7 you press 20 [SHIFT][nCr]7 ;

To enter 0.15 to the power 7 you type 0.15[X to ] 7 the key is between

[x²] and [log]

To enter (1-0.15) to power 20-7, you type 0.85 [X to] 13

With [*] standing for multiplication key , and [X to] the raise to power key, the exemple above can be entered as

**( 20 [SHIFT][nCr] 7) [*] ( 0.15 [X to] 7 ) [*] ( 0.85 [X to] 13 ) [=]**

Here is a screen capture to show you what it looks like. However on this calculator the combination 20 [SHIFT][nCr] 7 is represented as nCr(20,7).

P(r;p;n) =(nCr)(p^r)*(1-p)^(n-r), where n is the number of trials, p the probability of success, and r the expected result.

Let n=20, r=7, p=0.15 ( I do not know wether this exemple has any meaning in the context of your problem, but you have to enter values that mean something to you.) I am only showing you the key strokes

To enter 20C7 you press 20 [SHIFT][nCr]7 ;

To enter 0.15 to the power 7 you type 0.15[X to ] 7 the key is between

[x²] and [log]

To enter (1-0.15) to power 20-7, you type 0.85 [X to] 13

With [*] standing for multiplication key , and [X to] the raise to power key, the exemple above can be entered as

Here is a screen capture to show you what it looks like. However on this calculator the combination 20 [SHIFT][nCr] 7 is represented as nCr(20,7).

Dec 06, 2009 | Casio FX-115ES Scientific Calculator

Hello,

The binomial probability distribution is defined as

P(r;p;n) =(nCr)(p^r)*(1-p)^(n-r)

where n is the number of trials, p the probability of success, and r the expected result.

Let n=20, r=7, p=0.15 ( I do not know wether this exemple has any meaning in the context of your problem, but you have to enter values that mean something to you. I am only showing you the key strokes

To enter 20C7 you press 20 [SHIFT][nCr]7 ;

To enter 0.15 to the power 7 you type 0.15[X to ] 7 the key is between

[x²] and [log]

To enter (1-0.15) to power 20-7, you type 0.85 [X to] 13

With [*] standing for multiplication key , and [X to] the raise to power key, the exemple above can be entered as

**( 20 [SHIFT][nCr] 7) [*] ( 0.15 [X to] 7 ) [*] ( 0.85 [X to] 13 ) [=]**

Here is a screen capture to show you what it looks like. However on this calculator the combination 20 [SHIFT][nCr] 7 is represented as nCr(20,7).

Hope it helps

The binomial probability distribution is defined as

P(r;p;n) =(nCr)(p^r)*(1-p)^(n-r)

where n is the number of trials, p the probability of success, and r the expected result.

Let n=20, r=7, p=0.15 ( I do not know wether this exemple has any meaning in the context of your problem, but you have to enter values that mean something to you. I am only showing you the key strokes

To enter 20C7 you press 20 [SHIFT][nCr]7 ;

To enter 0.15 to the power 7 you type 0.15[X to ] 7 the key is between

[x²] and [log]

To enter (1-0.15) to power 20-7, you type 0.85 [X to] 13

With [*] standing for multiplication key , and [X to] the raise to power key, the exemple above can be entered as

Here is a screen capture to show you what it looks like. However on this calculator the combination 20 [SHIFT][nCr] 7 is represented as nCr(20,7).

Hope it helps

Nov 12, 2009 | Casio FX-115ES Scientific Calculator

Hello,

The binomial probability distribution is defined as

P(r;p;n) =(nCr)(p^r)*(1-p)^(n-r)

where n is the number of trials, p the probability of success, and r the expected result.

Let n=20, r=7, p=0.15 ( I do not know wether this exemple has any meaning in the context of your problem, but you have to enter values that mean something to you. I am only showing you the key strokes

To enter 20C7 you press 20 [SHIFT][nCr]7 ;

To enter 0.15 to the power 7 you type 0.15[X to ] 7 the key is between

[x²] and [log]

To enter (1-0.15) to power 20-7, you type 0.85 [X to] 13

With [*] standing for multiplication key , and [X to] the raise to power key, the exemple above can be entered as

**( 20 [SHIFT][nCr] 7) [*] ( 0.15 [X to] 7 ) [*] ( 0.85 [X to] 13 ) [=]**

Here is a screen capture to show you what it looks like. However on this calculator the combination 20 [SHIFT][nCr] 7 is represented as nCr(20,7).

Hope it helps

The binomial probability distribution is defined as

P(r;p;n) =(nCr)(p^r)*(1-p)^(n-r)

where n is the number of trials, p the probability of success, and r the expected result.

Let n=20, r=7, p=0.15 ( I do not know wether this exemple has any meaning in the context of your problem, but you have to enter values that mean something to you. I am only showing you the key strokes

To enter 20C7 you press 20 [SHIFT][nCr]7 ;

To enter 0.15 to the power 7 you type 0.15[X to ] 7 the key is between

[x²] and [log]

To enter (1-0.15) to power 20-7, you type 0.85 [X to] 13

With [*] standing for multiplication key , and [X to] the raise to power key, the exemple above can be entered as

Here is a screen capture to show you what it looks like. However on this calculator the combination 20 [SHIFT][nCr] 7 is represented as nCr(20,7).

Hope it helps

Nov 03, 2009 | Casio FX-115ES Scientific 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

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.

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

But

f(r;n,p)=

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

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.

Mar 08, 2008 | Texas Instruments TI-30 XIIS Calculator

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