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(a) Make a scatter diagram of the data. Then visualize the line you think best fits the data. (b) Would you say the correlation is low, moderate, or strong? Would you say the correlation is positive or negative? (c) Use a calculator to verify that Ex = 5817, x² = 5,645,271, y = 553, y2 = 59,835 and %3D Exy = 529,301.

(a) Make a scatter diagram of the data. Then visualize the line you think best fits the data. (b) Would you say the correlation is low, moderate, or strong? Would you say the correlation is positive or negative? (c) Use a calculator to verify that Ex = 5817, x² = 5,645,271, y = 553, y2 = 59,835 and %3D Exy = 529,301.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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 24PFA
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2) Statistics
Tutorial Exercise Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? For a random sample of tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in miles per hour) of the cyclone. 1004 975 992 935 990 921 y 40 100 65 145 67 136 (a) Make a scatter diagram of the data. Then visualize the line you think best fits the data. (b) Would you say the correlation is low, moderate, or strong? Would you say the correlation is positive or negative? (c) Use a calculator to verify that Ex = 5817, Ex² = 5,645,271, y = 553, y2 = 59,835 and xy = 529,301. Compute r. As x increases, does the value of r imply that y should tend to increase or decrease? Explain your answer.
Transcribed Image Text:Tutorial Exercise Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? For a random sample of tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in miles per hour) of the cyclone. 1004 975 992 935 990 921 y 40 100 65 145 67 136 (a) Make a scatter diagram of the data. Then visualize the line you think best fits the data. (b) Would you say the correlation is low, moderate, or strong? Would you say the correlation is positive or negative? (c) Use a calculator to verify that Ex = 5817, Ex² = 5,645,271, y = 553, y2 = 59,835 and xy = 529,301. Compute r. As x increases, does the value of r imply that y should tend to increase or decrease? Explain your answer.
Look at the following diagrams. Which diagrams show high linear correlation, moderate or low linear correlation, or no linear correlation? (a) (b) (c) (a) --Select--- (b) --Select--- --Select---
Transcribed Image Text:Look at the following diagrams. Which diagrams show high linear correlation, moderate or low linear correlation, or no linear correlation? (a) (b) (c) (a) --Select--- (b) --Select--- --Select---
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