City planners compile data on buildings in a city. For each building, they record the number of stories (floors) as well as the height of the building in feet. The number of stories has an average of 30 stories, with an SD of 15 stories. The height has an average of 400 feet with an SD of 90 feet. The correlation is strong but not perfect, with r = 0.8. A scatterplot with stories on the horizontal axis and height on the vertical axis is football shaped. (a) For each variable, circle all the terms that are applicable. Stories (floors): quantitative qualitative discrete continuous Height: quantitative qualitative discrete continuous 

 (b) About what percent of all the buildings are more than 500 feet tall? _____________% (c) About what percent of buildings with 50 stories are over 500 feet tall? ____________%

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
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City planners compile data on buildings in a city. For each building, they record the number
of stories (floors) as well as the height of the building in feet. The number of stories has an
average of 30 stories, with an SD of 15 stories. The height has an average of 400 feet with an SD
of 90 feet. The correlation is strong but not perfect, with r = 0.8. A scatterplot with stories on
the horizontal axis and height on the vertical axis is football shaped.
(a) For each variable, circle all the terms that are applicable.
Stories (floors): quantitative qualitative discrete continuous
Height: quantitative qualitative discrete continuous



(b) About what percent of all the buildings are more than 500 feet tall? _____________%
(c) About what percent of buildings with 50 stories are over 500 feet tall? ____________%

Expert Solution
Step 1

a) Stories(floors): Quantitative Discrete

     Height: Quantitative Continuous.

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