Entry level advertising art directors in new york city earn an average of $27,837 per year with a standard deviation of $1,700. Previous studies have determined that the salaries are normally distributed. What is the probability an art director makes more than 25000 per year? ii) What is the probability a new art director makes between $27,000 and 28,500 per year? 2) A sample of men with sickle cell anemia produce a mean red blood cell count of 3.29mcl and a standard deviation of 0.35 mcl. What is the probability that a man with sickle cell anemia has a bloodcell count below 2.94mcl?