The Body Paint, an automobile body paint shop, has determined that the painting time of automobiles is uniformly distributed and that the required time ranges between 40 minutes to 13 hours. (a) Give a mathematical expression for the probability density function. .1 |:|: (b) What is the probability that the painting time will be less than or equal to one hour? (Round your answer to two decimal places.) E (c) What is the probability that the painting time will be more than 45 minutes? [Round your answer to two decimal places.) E (d) Determine the expected painting time and its standard deviation (in minutes). [Round your standard deviation to two decimal places.) em = E