Questions:
1. The number of dust particles which occur on the reflector surface of a telescope has a Poisson distribution with intensity 0.1 per centimetre squared. What is the probability of not more than 2 particles on an area of 10 squared centimetres?
2.The random number of crackle sounds produced per hour by an old radio has a Poisson distribution with parameter What is the probability that there is no λ = 12. crackle sound during the 4 minutes transmission of a listener and #39;s favourite hit?