Problem: The average number of miles driven on a full tank of gas in a certain model car before its low-fuel light comes on is 368. Assume this mileage follows the normal distribution with a standard deviation of 32 miles. Complete parts a through d below.
Required:
Question 1: What is the probability that, before the low-fuel light come son, the car will travel less than 399 miles on the next tank of gas? Please show step by step details and formulas.