An expensive watch is powered by a 3-volt lithium battery expected to last years. Suppose the life of the battery has a standard deviation of year and is normally distributed. a. Determine the probability that the watch's battery will last longer than years. b. Calculate the probability that the watch's battery will last more than years. c. Compute the length-of-life value for which % of the watch's batteries last longer. a. The probability that the battery will last longer than years i