To estimate the percentage of households in Connecticut which use fuel oil as a heating source, a researcher collects information from 1000 Connecticut households about what fuel is their heating source. State the individual, variable, population, sample, parameter, and statistic.
I need help with the wording of my answers. I am mainly concerned about my variable answer.
I wrote:
- Individual: country
- Variable: density of people per square kilometer
- Population: set of all countries
- Sample: set of 56 countries
- Parameter: mean density of people per square kilometer calculated from the population
- Statistic: mean density of people per square kilometer calculated from the sample