To convert a Poisson spreadsheet into a bivariate version, one must consider whether the two variables are independent or dependent. If independent, the Poisson distributions can be multiplied; however, if they are dependent, correlation information is necessary. A key restriction involves incorporating draw probability as a parameter, where the draw probability is calculated as the sum of the products of the two distributions. The user has noted that their current calculations yield a draw probability lower than the actual, indicating that additional factors, particularly draw probability, must be integrated into the Poisson distribution. To accurately modify the distribution, it is essential to account for these draw probabilities in the calculations.
