Hello to whom it may concern,

I just started STAT 200 and want to make sure I am understanding the presented information. Could you check these first two answers for me?

1.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

Individual: households in Connecticut

Variable: which households in Connecticut use fuel oil as a heating source

Population: what percentage of households in Connecticut use fuel oil as a heating source

Sample: 1000 households in Connecticut

Parameter: household in the U.S.

Statistic: percentage of the 1000 households in Connecticut using fuel oil as a heating source

2.The World Health Organization wishes to estimate the mean density of people per square kilometer, they collect data on 56 countries.State the individual, variable, population, sample, parameter, and statistic

Individual: People

Variable: mean density of people per square kilometer

Population: what is the mean density of people per square kilometer

Sample: the chosen 56 countries

Parameter: mean density of people throughout the world

Statistic:the mean densityof people per square kilometer