The Des Moines Register recently reported the ratings of high school sportsmanship as compiled by the Iowa High School Athletic Association. For each school the participants and coaches were rated by referees, where 1 = superior, and 5 = unsatisfactory. A regression analysis of the average scores given to football players and coaches is shown below. 
Linear Fit FBParticipants = 0.902 + 0.568 FBCoaches 
a) Interpret the value of the correlation between the ratings of coaches and participants.
b) Interpret the value of the coefficient of determination.
c) Interpret the value of the standard deviation about the least squares line.
Definitions:
Corpora Cavernosa
Spongy tissues running along the length of the penis that fill with blood during erection, contributing to its rigidity.
Membranous Urethra
The section of the urethra that passes through the urogenital diaphragm, primarily in males.
Corpus Spongiosum
Median column of erectile tissue located between and ventral to the two corpora cavernosa in the penis; posteriorly it forms the bulb of the penis, and anteriorly it terminates as the glans penis; it is traversed by the urethra. In the female, it forms the bulb of the vestibule.
Mucous-Secreting Glands
Glands that produce and secrete mucus, which protects and lubricates various parts of the body, such as the respiratory and digestive tracts.
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