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Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. 3 7 15 40 73 y 40 35 30 27 20 (b) Would you say the correlation is low, moderate, or strong? positive or negative? O moderate and negative O strong and negative O low and positive O strong and positive O moderate and positive O low and negative (c) Use a calculator to verify that Ex = 138, Ex² = 7212, Ey = 152, Ey² = 4854, and Exy = 3355. Compute r. (Round your answer to four decimal places.) As x increases, does the value of r imply that y should tend to increase or decrease? Explain. O Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. O Given our value of r, y should tend to remain constant as x increases. O Given our value of r, y should tend to increase as x increases. O Given our value of r, y should tend to decrease as x increases.

Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. 3 7 15 40 73 y 40 35 30 27 20 (b) Would you say the correlation is low, moderate, or strong? positive or negative? O moderate and negative O strong and negative O low and positive O strong and positive O moderate and positive O low and negative (c) Use a calculator to verify that Ex = 138, Ex² = 7212, Ey = 152, Ey² = 4854, and Exy = 3355. Compute r. (Round your answer to four decimal places.) As x increases, does the value of r imply that y should tend to increase or decrease? Explain. O Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. O Given our value of r, y should tend to remain constant as x increases. O Given our value of r, y should tend to increase as x increases. O Given our value of r, y should tend to decrease as x increases.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter7: Integration
Section7.CR: Chapter 7 Review
Problem 88CR
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Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims.

Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. 3 15 40 73 y 40 35 30 27 20 (b) Would you say the correlation is low, moderate, or strong? positive or negative? O moderate and negative O strong and negative O low and positive O strong and positive O moderate and positive O low and negative (c) Use a calculator to verify that Ex = 138, Ex? = 7212, Ey = 152, Ey? = 4854, and Exy = 3355. Compute r. (Round your answer to four decimal places.) As x increases, does the value of r imply that y should tend to increase or decrease? Explain. Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. O Given our value of r, y should tend to remain constant as x increases. Given our value of r, y ould tend to increase as x increases. O Given our value of r, y should tend to decrease as x increases. O O O O
Transcribed Image Text:Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. 3 15 40 73 y 40 35 30 27 20 (b) Would you say the correlation is low, moderate, or strong? positive or negative? O moderate and negative O strong and negative O low and positive O strong and positive O moderate and positive O low and negative (c) Use a calculator to verify that Ex = 138, Ex? = 7212, Ey = 152, Ey? = 4854, and Exy = 3355. Compute r. (Round your answer to four decimal places.) As x increases, does the value of r imply that y should tend to increase or decrease? Explain. Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. O Given our value of r, y should tend to remain constant as x increases. Given our value of r, y ould tend to increase as x increases. O Given our value of r, y should tend to decrease as x increases. O O O O
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