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Excel

In Excel, the CRITBINOM function is used to calculate the probability of a binomial event occurring. The function takes three arguments: the number of successes, the number of trials, and the probability of success. The function then calculates the probability of the event occurring at least once, given the number of trials and the probability of success.

The syntax of CRITBINOM in Excel is as follows:

=CRITBINOM(number of trials, probability of success, cumulative probability)

This function calculates the cumulative binomial probability for a given number of trials and probability of success. The function will return the value of the cumulative binomial probability for the given parameters, or #NUM! if an error occurs.

The CRITBINOM function in Excel is used to calculate the probability of a specific event occurring, given that it has already occurred a certain number of times. For example, if you wanted to know the probability of getting a 6 on a die, given that you have already rolled it 5 times, you would use the CRITBINOM function. To do this, you would first enter the number of times the event has already occurred (5) into the "n" argument of the function. You would then enter the probability of the event occurring (1/6) into the "p" argument of the function. Finally, you would enter the number of times you want to test for the event (1) into the "k" argument of the function. This would give you a result of 0.8, or 80%.

There are a few occasions when you should not use the CRITBINOM function in Excel. One such instance is when you have a small sample size. Another time you should not use CRITBINOM is when you have an extremely skewed distribution. Additionally, the function should not be used if the probability of success is less than 0.5.

The following are similar formulae to CRITBINOM in Excel:

1) =CHISQ.DIST.RT(x, df, cumulative) 2) =CHISQ.INV.RT(p, df) 3) =F.DIST.RT(x, df) 4) =F.INV.RT(p, df) 5) =GAMMA.DIST.RT(x, alpha, df) 6) =GAMMA.INV.RT(p, alpha, df) 7) =HYPGEOM.DIST.RT(x, mu, sigma) 8) =HYPGEOM.INV.RT(p, mu, sigma) 9) =INV.NORMS.DIST(z) 10) =NORMS.INV(p)

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