In the graph below are two correlations. One is shown with blue circles and another with orang 58 56 (sdno) pa

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2CYU
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QUESTION 1
In the graph below are two correlations. One is shown with blue circles and another with orange asterisks. The three gray triangles are measurement tests. What conclusions can you draw from this work?
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Days with less than 8 hours of sleep
The tests do not tell us anything conclusive since all three tests are in agreement with both correlations
o The tests show that since there isn't strong agreement with the blue circle correlation, there must be agreement with the orange asterisk one
o The tests mean that a 3rd correlation must be necessary
The test at "20 days' shows that both correlations are true
QUESTION 2
If you fit a slope and intercept at the same time, then their errors will be correlated.
O True
O False
Transcribed Image Text:QUESTION 1 In the graph below are two correlations. One is shown with blue circles and another with orange asterisks. The three gray triangles are measurement tests. What conclusions can you draw from this work? 58 56 48 46 10 20 30 40 50 60 70 80 90 100 Days with less than 8 hours of sleep The tests do not tell us anything conclusive since all three tests are in agreement with both correlations o The tests show that since there isn't strong agreement with the blue circle correlation, there must be agreement with the orange asterisk one o The tests mean that a 3rd correlation must be necessary The test at "20 days' shows that both correlations are true QUESTION 2 If you fit a slope and intercept at the same time, then their errors will be correlated. O True O False
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