An Introductory Psychology teacher wanted to know the relationship between course grades and course evaluation. He had all students in his Introductory Psychology sections complete a course evaluation. From these evaluations, he randomly selected the course evaluation of 15 students. He correlated their course-evaluation scores with their course grades, letting A = 5, B = 4, C = 3, D = 2, and F = 1. Here are his data.
a. Compute r.
b. Interpret r.

Question

An Introductory Psychology teacher wanted to know the relationship between course grades and course evaluation. He had all students in his Introductory Psychology sections complete a course evaluation. From these evaluations, he randomly selected the course evaluation of 15 students. He correlated their course-evaluation scores with their course grades, letting A = 5, B = 4, C = 3, D = 2, and F = 1. Here are his data.  
a. Compute r.
b. Interpret r.

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The Answer of An Introductory Psychology teacher wanted to know the relationship between course grades and course evaluation. He had all students in his Introductory Psychology sections complete a course evaluation. From these evaluations, he randomly selected the course evaluation of 15 students. He correlated their course-evaluation scores with their course grades, letting A = 5, B = 4, C = 3, D = 2, and F = 1. Here are his data.  
a. Compute r.
b. Interpret r.

An Introductory Psychology Teacher Wanted to Know the Relationship Between