3. {2 points} In 1898 L. J. W published a book entitled The Low omew'r' Numbers. He used data collected over 20 years to show that the number of soldiers killed by horse kicks each year in each corps in the Prussian cavalry followed a Poisson distribution with a mean of 0.51. What is the probability of two or more deaths in a corps in three years? Answer: 0.54603 _