solve this in 30 mint pls

Question 9'. [fa paJticular plant power failure occurs according to a Poisson distribution 1with an average of3 faian'es in enter}.-r 2|] days, calculate the probability that there will no more than one failure during a particular day. Question It}. Suppose that the lifetime ofa particular component ofa battery [in a container] is known to he approximately normally distributed with the mean Silt] hours and standard deviation 5|] hours. A purchaser requires at least 95 percent of them to have a lifetime greater than 399 hours. Will the component ofa battery [in a container} meet the purchaser's specication