What is the probability that John will earn between $1,306 and $1,905 this month? (Keep 4 decimal places) 2. The true length of boards cut at a mill with a listed length of 10 feet is normally distributed with a mean of 119.2 inches and a standard deviation of 0.46 inch. What percentage of the boards will be under 120.2 inches in length? (Keep two decimal places).