Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

Monthly Update sign up
Mailing List signup
Search
Follow The Annenberg Learner on LinkedIn Follow The Annenberg Learner on Facebook Follow Annenberg Learner on Twitter
MENU
Learning Math Home
Data Session 7: Notes
 
Session 7 Part A Part B Part C Part D Homework
 
Glossary
Data Site Map
Session 7 Materials:
Notes
Solutions
 

A B C D 
Homework

Video

Solutions for Session 7, Part B

See solutions for Problems: B1 | B2 | B3


Problem B1

a. 

Yes. Of the 12 people with below-average arm spans, 10 have below-average heights.

b. 

Yes. Of the 12 people with above-average arm spans, 11 have above-average heights.

c. 

These answers suggest a positive association between arm span and height.

<< back to Problem B1


 

Problem B2

a. 

Yes. Of the 11 people with below-average heights, 10 have below-average arm spans.

b. 

Yes. Of the 13 people with above-average heights, 11 have above-average arm spans.

<< back to Problem B2


 

Problem B3

Here are the completed tables:

Row proportions:

Row percentages:

Since 90.9% of the people with below-average heights also have below-average arm spans, and 84.6% of the people with above-average heights also have above-average arm spans, this again indicates a strong positive association between height and arm span.

<< back to Problem B3


 

Learning Math Home | Data Home | Register | Glossary | Map | ©

Session 7 | Notes | Solutions | Video

© Annenberg Foundation 2014. All rights reserved. Legal Policy