When Hyacinth Creates a Scatterplot That Shows the Number of Bystanders

question 89

Multiple Choice

When Hyacinth creates a scatterplot that shows the number of bystanders who witness an emergency and the length of time for help to be given, the points on the scatterplot fall roughly along a line that slants down and to the right.Based on her scatterplot, Hyacinth can conclude that the number of witnesses and the time to offer help:

• A)are positively correlated
• B)are negatively correlated
• C)are only weakly correlated
• D)have a cause-and-effect relationship

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Definitions:

Depth Perception

The ability to perceive the world in three dimensions and to judge the distance of objects accurately.

Skin Sensations

Feelings perceived through the skin, including touch, pressure, heat, cold, and pain, mediated by the nervous system.

Pressure

The feeling of stressful urgency caused by the perception of the need to perform well in a situation or accomplish a task.

Color Constancy

The perceptual property by which the color of an object appears the same under varying lighting conditions.