In a Campus Survey, What Was the Shape of the Distribution

question 22

Multiple Choice

In a campus survey, what was the shape of the distribution of reported number of drinks consumed on a typical weekend night?

• A) Normal
• B) Abnormal
• C) Positively skewed
• D) Negatively skewed

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Definitions:

Pigments

Substances that give color to biological organisms, objects, or materials by absorbing and reflecting certain wavelengths of light.

Color Spectrum

The range of all possible frequencies of electromagnetic radiation visible to the human eye, perceived as colors.

Rod Cells

Photoreceptor cells in the retina of the eye that are responsible for vision at low light levels but do not mediate color vision.

Retina

The thin layer of tissue that lines the back of the eye on the inside, composed of light-sensitive cells and responsible for converting light into neural signals for visual recognition.