Random and Bias

Front

What is the mode in a set of numbers?

Back

The mode is the number that appears most frequently in a data set.

Front

What is a random sample?

Back

A random sample is a sample in which every person, object, or event has an equal chance of being selected.

Front

What is a biased sample?

Back

A biased sample is a sample that does not accurately represent the population.

Front

Why is random selection important in sampling?

Back

Random selection is important to reduce bias and ensure that the sample represents the population.

Front

What does it mean for a question to be biased?

Back

A biased question is one that leads respondents to answer in a particular way, often influencing the results.

Front

How can bias affect survey results?

Back

Bias can skew results, leading to inaccurate conclusions that do not reflect the true opinions or behaviors of the population.

Front

What is the difference between a random sample and a biased sample?

Back

A random sample gives every member of the population an equal chance of being selected, while a biased sample does not.

Front

What is an example of a biased question?

Back

"Don't you think that this product is the best on the market?" This question suggests a preferred answer.

Front

What is the purpose of using random sampling in research?

Back

The purpose is to eliminate confounding results and ensure that findings can be generalized to the larger population.

Front

What is a confounding variable?

Back

A confounding variable is an outside influence that changes the effect of a dependent and independent variable.