Open Up - Grade 8 - Mathematics - Unit 6 - Lesson 10

By Formative Library

Last updated over 2 years ago

3 Questions

An ecologist is studying a forest with a mixture of tree types. Since the average tree height in the area is 40 feet, he measures the height of the tree against that. He also records the type of tree. 
The results are shown in the table and segmented bar graph. Is there evidence of an association between tree height and tree type?

Yes, there is a association.

No, there is no association

There is not enough infomation.

8.SP.4

An ecologist is studying a forest with a mixture of tree types. Since the average tree height in the area is 40 feet, he measures the height of the tree against that. He also records the type of tree. 
The results are shown in the table and segmented bar graph. Is there evidence of an association between tree height and tree type?

Yes, there is are Diffrences.

No, there is no Diffrences

There is not enough infomation.

8.SP.4

A scientist is interested in whether certain species of butterflies like certain types of local flowers. The scientist captures butterflies in two zones with different flower types and records the number caught.
 Do these data show an association between butterfly type and zone? 

Yes, there is an Association.

No, there is no Association.

There is not enough infomation.

8.SP.4

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