Using daily inmate data from the Orleans Parish Prison in New Orleans, from 2011 until mid 2017,

Question:

Using daily inmate data from the Orleans Parish Prison in New Orleans, from 2011 until mid 2017, it can be found that the average daily inmates was 2 181.69.
a) Is the number provided a parameter or a statistic, when assessing inmates from 2011 until mid 2017?
b) ResultsNOLA is a system implemented in New Orleans to track progress towards citywide and strategic goals. The figure below summarizes the quarterly number of inmates from 2011 until mid 2017. What can you say about the mean daily inmates given above?