An internet service provider has two connection lines for its customers. eighty percent of customers are connected through line i, and twenty percent are connected through line ii. line i has a gamma connection time with parameters α = 3 and λ = 2 min−1 . line ii has a uniform(a, b) connection time with parameters a = 20 sec and b = 50 sec. compute the probability that it takes a randomly selected customer more than 30 seconds to connect to the internet.