Writing

Tallula's Cookie Factory bakes crackers which are sold in 300 g boxes. \\ It is not uncommon that some of the crackers in the box are broken. The number of broken crackers follows a Poisson distribution with a mean of 1.53 broken crackers per box. Use the Poisson distribution to calculate the probability that 20 boxes will contain a total of 20 broken crackers. Give your answer to 6 decimal places