1) Duration based on the Optimistic, Expected and Pessimistic Durations, using the equation from class. Round to the nearest day. 2) The variance based on the equation presented in class. Round to two decimal points. 3) The standard deviation based on the equation presented in class. Round to two decimal points. Fill in the columns below: 1) Duration based on the Optimistic, Expected and Pessimistic Durations, using the equation from class. Round to the nearest day. 2) The variance based on the equation presented in class. Round to two decimal points. 3) The standard deviation based on the equation presented in class. Round to two decimal points. Fill in the columns below: Path 1: Path 2: Path 3: Path 4