The Relationship Between the Cost of a Taxi Ride (Y)and $\hat{\text { cost} }$

question 26

Multiple Choice

The relationship between the cost of a taxi ride (y) and the length of the ride (x) is analyzed.The mean length was 4.6 km with a standard deviation of 1.1.The mean cost was $8.70 with a standard deviation of 2.0.The correlation between the cost and the length was 0.81.

• A) \(\hat{\text { cost} }\) = 0.336 + 1.82 length
• B) \(\hat{\text { cost} }\) = 1.93 + 1.47 length
• C) \(\hat{\text { cost} }\) = -113 + 26.5 length
• D) \(\hat{\text { cost} }\) = 6.65 + 0.446 length
• E) \(\hat{\text { cost} }\) = -458 + 101 length

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Definitions:

Leukocyte

Leukocytes, or white blood cells, are cells of the immune system that protect the body against both infectious disease and foreign invaders.

Formed Element

A term referring to the cells and cell fragments suspended in blood plasma, including erythrocytes, leukocytes, and platelets.

Platelet

A small, disk-shaped cell fragment in the blood, essential for blood coagulation and wound healing.

Erythrocyte

A type of blood cell that is typically biconcave and without a nucleus, responsible for transporting oxygen and carbon dioxide in the blood.