It is known that the number of system failures during a month for a laboratory computing system has a Poisson distribution with a mean of 0.80. The system failed today. Find the probability that at least 2 months will elapse before the next failure.

Use Excel or JMP to find probabilities and values. Do not round intermediate calculations. Round your final answer to four decimals. Use number format 0.0000 Do not use probability tables to find probabilities.