Try It Out -- Chapter 3, Lesson 8: Communicate about Conclusions from Data

Tasmin read a newspaper article with the headline “More schools mean more pollution days”. The article reported a study on the relationship between the number of schools in Canadian cities and the number of pollution days each year. Below is the scatter plot from the article.


Order the steps Tasmin takes to analyze the argument based on the scatter plot.

She also noted the points in the lower left of the scatter plot show that cities with fewer schools have fewer pollution days.
Cities that have more schools are larger and therefore have a greater number of cars, factories, and other sources of pollution.
Tasmin suggests that people cause pollution, not schools. She says the more people there are in a city, the more schools there will be, and the more pollution there will be. She decides to do research to see if her idea is correct.
Tasmin noted the points in the upper right of the scatter plot show that cities with more schools have more pollution days.


What was Tasmin’s first step?


What was her second step?


What was her third step?


What was Tasmin’s final step?

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