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Learning Math Home
Data Session 7: Notes
Session 7 Part A Part B Part C Part D Homework
Data Site Map
Session 7 Materials:

A B C D 


Solutions for Session 7, Part B

See solutions for Problems: B1 | B2 | B3

Problem B1


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


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


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

<< back to Problem B1


Problem B2


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


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


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