answers are input in the red and they are correct. However I dont understand how the answer is 0.27 and I need help understanding that. thanks :)

Score: 0.5 of 1 pt Section 3.3 Exercise 6 Question Help After entering the test scores from her Statistics class of 37 students, the instructor calculated the mean and the median of the scores. Upon checking, she discovered that the top score entered was 60, but it should have been 70. When she corrects this score, how will the mean and median be affected? Determine how the mean will be affected. Select the correct choice below and, if necessary, fil in the answer box within your choice. > A. The mean will increase by 0.27 points. (Round to two decimal places as needed) OB. The mean will decrease by points (Round to two decimal places as needed.) OC. The mean will not change OD. It is impossible to determine how the mean will change Determine how the median will be affected. Select the correct choice below and, if necessary, in the answer box within your choice. Ini A The median will increase by points (Round to two decimal places as needed.) 3. The median will decrease by points (Round to two decimal places as needed) The median will not change D. It is impossible to determine how the median will change