Time to review: The following table presents the time taken to review articles tha few articles took longer than 6 months to review; these are omitted from the table. Time (Months) Number of Articles 48 0-0.9 1.0-1.9 19 2.0-2.9 18 3.0-3.9 17 4.0-4.9 15 5.0-5.9 11 Send data to Excel (a) Approximate the variance of the times. Round the answer to at least two decir The variance is (b) Approximate the standard deviation of the times. Round the answer to at leas The standard deviation is Check