For the entire city of Athens, the average income is $33,060, and 37.8% of the residents are below the poverty line. A local researcher does not have this information, so she tries to estimate these values by taking a random sample of 200 citizens of Athens. In her sample, the average income is $38,150, and 25% of the citizens in her sample were below the poverty line. 1The entire city of Athens is the:.
a. population.
b. sample.
2) The 200 citizens from the researcher's data is the:.
a. sample.
b. population.
3) Which symbol would denote the value of 0.378 in this example?
4) Which symbol would denote the value of 0.25 in this example?