किसी संख्यात्मक डेटासेट के अंकगणितीय माध्य (arithmetic mean) की गणना किस प्रकार की जाती है?

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: In Measures of Central Tendency, the mean is highly sensitive to extreme values, whereas the median remains uninfluenced by outliers. Reason R: The mean is the arithmetic average of a dataset, while the median simply represents the middle value in an ordered dataset. In the light of the above statements, choose the most appropriate answer from the options given below:

The number of patients treated in a dental office on Mondays was recorded for 11 weeks as follows: 5, 17, 28, 28, 28, 15, 13, 18, 10, 16, 20 What are the mean, median, and mode for this dataset?