In a reliability test there is a 42% probability that a computer chip survives more than 500 temperature cycles. if a computer chip does not survive more than 500 temperature cycles, then there is a 73% probability that it was manufactured by company a. let a be the event that the chip was “made by company a”, and b be the event that a chip “survives 500 temperature cycles”. that is a made by company a = " ", and b survives 500 temperature cycles = " ". what is the probability that a computer chip is not manufactured by company a and does not survive more than 500 temperature cycles?