To assess the relationship between number of absences and grades, an instructor collects data from the 10 students in a class and runs a simple regression. She finds a perfect negative relationship: as number of absences goes up, grades go down. But then, the instructor remembers that there is an 11^th person in the class: someone who never came to class but still managed somehow to get a perfect grade in the course. Conceptually (not mathematically) describe what will happen to the slope and correlation coefficient.

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The Answer of To assess the relationship between number of absences and grades, an instructor collects data from the 10 students in a class and runs a simple regression. She finds a perfect negative relationship: as number of absences goes up, grades go down. But then, the instructor remembers that there is an 11^th person in the class: someone who never came to class but still managed somehow to get a perfect grade in the course. Conceptually (not mathematically) describe what will happen to the slope and correlation coefficient.

To Assess the Relationship Between Number of Absences and Grades