Blood pressure values are often reported to the nearest 5 mmHg (100, 105, 110, etc.). Suppose the actual blood pressure values for nine randomly selected individuals are 118.

6 2

a. What is the median of the reported blood pressure values?

b. Suppose the blood pressure of the second individual is 127.

6 rather than 127.

4 (a small change in a single value). How does this affect the median of the reported values? What does this say about the sensitivity of the median to rounding or grouping in the data?