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Open Up - Grade 8 - Mathematics - Unit 6 - Lesson 9

Last updated 9 months ago

4 questions

1

A scientist wants to know if the color of the water affects how much animals drink. The average amount of water each animal drinks was recorded in milliliters for a week and then graphed.

Is there evidence to suggest an association between water color and animal?

1

A farmer brings his produce to the farmer’s market and records whether people buy lettuce, apples, both, or something else.
Make a table that shows the relative frequencies for each row. Use this table to decide if there is an association between buying lettuce and buying apples.

1

Researchers at a media company want to study news-reading habits among different age groups. They tracked print and online subscription data and made a 2-way table.
Create a segmented bar graph using one bar for each row of the table.(Show Your Work)

Is there an association between age groups and the method they use to read articles?(Multiple Choice)

1

Using the data in the scatter plot, what is a reasonable slope of a model that fits this data?

"Source: Open Up Resouces (Download for free at openupresources.org.)"