Day 38-Parameter vs. Statistic-part 2

Front

What is a parameter in statistics?

Back

A parameter is a numerical value that summarizes a characteristic of a population.

Front

What is a statistic in statistics?

Back

A statistic is a numerical value that summarizes a characteristic of a sample.

Front

What does it mean if a value is a sample?

Back

A sample is a subset of a population used to represent the whole population.

Front

What does it mean if a value is a population?

Back

A population includes all members of a specified group.

Front

In the context of surveys, what does 44.5% represent if it comes from a sample of students?

Back

44.5% represents a statistic, as it summarizes a characteristic of the sample.

Front

If a survey reports that 38% of college board members think higher education costs are justified, is this a parameter or statistic?

Back

This is a statistic because it is derived from a sample of college board members.

Front

What is the difference between a population and a sample?

Back

A population includes all individuals of interest, while a sample is a smaller group selected from the population.

Front

What does it mean if a survey reports a value of 83% from fairgoers?

Back

This 83% is a statistic, as it reflects the responses from a sample of attendees.

Front

How do you determine if a data set is a population or a sample?

Back

If the data set includes every member of the group being studied, it is a population; if it includes only a portion, it is a sample.

Front

What is an example of a parameter?

Back

The average height of all high school students in the U.S. is a parameter.