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Illustrative Math - Algebra 2 - Unit 7 - Lesson 2

By Formative Library
Last updated 7 months ago
7 questions

What type of study would you conduct if you wanted to know how many hours a week on average students at your school spend on homework?

Explain your reasoning.

Select all designs which describe an observational study that is not a survey.

In an observational study, it was noticed that people that eat more chocolate tend to have better blood flow than the general population. Researchers wonder whether the improved blood flow might be caused by flavanols (a molecule found in many foods). Dark chocolate contains a high concentration of flavanols, but milk chocolate contains a much lower concentration. How could the researchers design an experiment to determine the effects of flavanol on blood flow from the different types of chocolate?

What is one major difference between an observational study and an experimental study?

For physics class, Jada wants to know how the surface of different ramps affects the maximum speed of a marble being rolled down the ramp. To study this, she compares the maximum speed of a marble rolled down ramps with different surfaces. She rolls the same marble down each type of ramp 10 times. What type of study is this?

This lesson is from Illustrative Mathematics. Algebra 1, Unit 7, Lesson 2. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/3/7/2/index.html ; accessed 29/July/2021.

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