Statistics Review

Front

What is the definition of a population in statistics?

Back

A population is the entire group of individuals or instances about whom we hope to learn.

Front

What is a sample in statistics?

Back

A sample is a subset of the population selected for observation and analysis.

Front

What does margin of error mean?

Back

Margin of error is a statistic expressing the amount of random sampling error in a survey's results.

Front

How do you calculate the confidence interval?

Back

Confidence interval = sample statistic ± margin of error.

Front

What is the purpose of conducting a survey?

Back

To gather information and insights from a specific group to make informed decisions.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical values.

Front

What is a random sample?

Back

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Front

What is the significance of a sample size?

Back

A larger sample size generally leads to more reliable and valid results in statistical analysis.

Front

What is a biased sample?

Back

A biased sample is one that does not accurately represent the population, leading to skewed results.

Front

What is the role of a survey in research?

Back

Surveys collect data to understand opinions, behaviors, or characteristics of a population.