Videos and lessons to help High School students learn how to recognize the purposes of and differences among sample surveys, experiments, and observational studies; explain how randomization relates to each.

Common Core: HSS-IC.B.3

Related Topics:

Common
Core (Statistics & Probability)

Common Core
for Mathematics

Surveys, Observational Studies, Experiments.

Survey, Experiments, and Observational Studies 2.

Experiments, Surveys, and Observational Studies

Going over the differences and applying them.

Observational Studies vs. Experiments.

Experiments and Observational Studies.

Observational Study vs Experiment

What's the difference between an observational study and an experiment?

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.