Researchers Wish to Study Fuel Consumption Rates Based on Speed

question 53

Multiple Choice

Researchers wish to study fuel consumption rates based on speed.The data from the test car at 10 speeds are below. It can be shown that for these data: Calculate the sample correlation coefficient.

• A)0.12
• B)-0.12
• C)-0.36
• D)-0.34
• E)0.34

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Definitions:

Number of Times in Prison

A count of the instances an individual has been incarcerated.

Y-Intercept

The point where a line or curve intersects the y-axis on a graph.

Linear Regression Equation

A mathematical equation used to predict the value of a dependent variable based on one or more independent variables, assuming a linear relationship.

Pearson r

A measure of the linear correlation between two variables, ranging from -1 to 1, where 1 means a perfect positive linear relationship, -1 a perfect negative linear relationship, and 0 no linear relationship.