Worked Problems (Show your calculations in order to get full credit) 1. The life expectancy of Timely brand watches is normally distributed with a mean of four years and a standard deviation of 0.7year, a) Find the probability that a randomly selected watch will be in working condition for more than five years? (3 points) (b) 95% of the watches will have a life expectancy of greater than how many years? (2 Points)