The mean lifetime of the engine of a particular car is 250,000 km with a standard deviation of 50,000 km. A) what is the probability of an engine will last more than 375,000 km? B) what is the power of bid in Angel last less than 125,000 km? C) What is the probability that engine will last in between 375,000 km and 125,000 km? D) A warranty lasts up to 125,000 km. If the manufacturer sells 50,000 cars with this warranty and an engine replacement costs $2500, what is the expected warranty cost using this model