# Texas Instruments TI-30XA Calculator "binomial ncr" Questions

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## Binomial function

...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 ...

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## Binomial distribution

...binomial distribution using this calculator? for example: 0.5^10*10!/8!2!+10!/9!1!+10!/10!0! ? The number of combinations of n objects taken r at a time has a reserved symbol nCr. On calculators it ...

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## How to use binomial in calculator

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

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## How do i enter the formula into my calc for a

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[

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## Binomial function in calculator fx-911ES

...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 ...

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## BINOMIAL DISTRIBUTION

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[

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## When i enter the binomial

nCr, you will avoid the problem. In the binomial function, the n!/(r!(n-r)!) factor can be replaced by nCr or nC(n-r). Do not use the explicit form with the factorials because you will get an overflow

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## How to use the nCr button for the binomial

how to use the nCr button for the binomial distribution using the ti 30Xa" The key is accessed by sequence [2nd] 8 Eg; Selecting 3 out of 5 5C3 is entered as 5 [2nd] 3 [=], result is 10

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## How do you do permutation problems, combination

...binomial probability problems on it? What keys do u press? Use the key next to which is the marking nPr, for permutations, and the key nCr for combinations. In all probability, the functions are ...

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