State one practical use of variation related to health statistics.

Question 1- 200-word Answer
Citing one specific credible source
State one practical use of variation related to health statistics.
Briefly discuss its implications.

Question 2- 200-word Answer
Citing one specific credible source
Find an article that mentions a new drug that promises an improved survival rate.
Identify whether this rate represents the mean or the median of the data set.
Assess whether that is ideally what you’d want to know for this data.
Provide a specific reason for your answer.