The life spans of car batteries are normally distributed, with a mean of 44 months and a standard diviation of 5 months.
A) A car battery is selected at random. Find the probability that the life span of the battery is less than 36 months.
B) A car battery is selected at random. Find the probability that the life span of the battery is between 42 and 60 months.
C) What is the shortest life expectancy a car battery can have and still be in the top 5% of life expectancies?