Data are drawn from a bell-shaped distribution with a mean of 35 and a standard deviation of 2. a. Approximately what percentage of the observations fall between 33 and 37? (Round your answer to the ne Percentage of observations % b. Approximately what percentage of the observations fall between 31 and 39? (Round your answer to the neare Percentage of observations % c. Approximately what percentage of the observations are less than 33? (Round your answer to 1 decimal place.) Percentage of observations %