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Simply Surveying

Now, let’s explore this next situation:

large wave
This is a large tsunami wave.
While researching the snowfalls in each of the different states, Marissa is distracted by a video about tsunamis.

Watch this video now:
> Tracking Tsunamis opens in new window
(from Ocean Today)

After viewing the video, the girls become curious about tsunamis. They perform a search on Thinkport opens in new window and find many articles. If you are interested in learning more about tsunamis, take some time to read some of these articles.

allysonAllyson: What would we like to research about tsunamis? There are a lot of articles containing many statistical points about tsunamis. Tsunamis will be our population. What will be our hypothesis?

Marissa and Allyson find another interesting article, Tsunami Statistics opens in new window. It contains a list of tsunamis with a maximum water height of 10 meters or more from 1945 to 2010. The chart also shows the magnitude of the earthquake that triggered the tsunami.

marissaMarissa: I believe most tsunamis were triggered by earthquakes of magnitudes between 7.0 and 8.0. Let’s research that.

Check Your Understanding

When taking a survey of a population, be very careful how you are surveying the population you intend to survey.

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