If $r = - 0.4$ For the Relationship Between the Time of Day and Amount

question 371

Multiple Choice

If $r = - 0.4$ for the relationship between the time of day and amount of coffee in an office worker's mug, which are true?
I. $r ^ { 2 } = - 16 \%$
II. There is a linear relationship between time and amount of coffee.
III. $16 \%$ of the variability is correctly predicted by time of day.

• A) none of these
• B) I
• C) II
• D) III
• E) II and III only

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Definitions:

Bulbospongiosus

A muscle of the perineum that acts to compress the bulb of the urethra, aiding in the expulsion of urine or semen.

Coccygeus

A small muscle located in the pelvic area, contributing to the pelvic floor's structure and involved in supporting pelvic organs.

External Anal Sphincter

Ring of striated muscular fibers surrounding the anus.

Inferior Oblique

A muscle in the orbit of the eye that controls elevation of the eyeball and helps in movements such as looking upward.