(Solved): Q1. Suppose that the battery life span of a Tesla 3 in distance is normally distributed with a mean ...

Q1. Suppose that the battery life span of a Tesla 3 in distance is normally distributed with a mean and a standard deviation of 110,000 miles and 25,000 miles, respectively 1. What is the probability that a randomly selected Tesla 3 has its battery lasting more than 120,000 miles ( 3 decimal places)? 2. If we randomly select five Tesla 3 and test them out by ourselves, what is the probability that the average battery life span of these Tesla is more than 120,000 miles (3 decimal places)? 3. If we randomly select five Tesla 3 and test them out, what is the probability that ALL their battery last more than 120,000 miles ( 3 decimal places)?