BinomInv  - Script and chart function
                    BinomInv() returns the inverse of the accumulated probability of the Binomial distribution.
Syntax:
BinomInv(prob, trials, trial_probability)
Return data type: number
| Argument | Description | 
|---|---|
| prob | A probability associated with the Binomial-probability distribution. It must be a number between 0 and 1. | 
| trials | A positive integer that states the number of trials. | 
| trial_probability | The success probability for each trial. It is always a number between 0 and 1. | 
This function is related 
			to the BinomDist function in the following way: 
If prob = BinomDist(value, trials, trial_probability), then BinomInv(prob, trials, trial_probability) = value