A 2-column table with 6 rows. Column 1 is labeled Sample with entries 1, 2, 3, 4, 5, 6. Column 2 is labeled Sample Mean with ent
ries 16.8, 12.3, 19.0, 17.5, 18.2, 17.5. Looking at this table of sample means, which value is the best estimate of the mean of the population?
11.0
12.3
17.3
20.9