The CRITBINOM function returns the smallest value for which thecumulative is creater than or equal to a given value. @n is the number of trials, @p is the probability of success in trials, and @alpha is the criterion value. Performing this function on a string or empty cell simply does nothing.
if trials is a non-integer it is truncated. if trials < 0 CRITBINOM returns #NUM! error. if p < 0 or p > 1 CRITBINOM returns #NUM! error. if alpha < 0 or alpha > 1 CRITBINOM returns #NUM! error.