A Frequency Distribution Has a Mean of 200 and a Standard

question 83

Multiple Choice

A frequency distribution has a mean of 200 and a standard deviation of 20. The class limits for one class are 220 up to 240. What are the standard normal z-statistics for the class limits?

• A)−20 and 20
• B)−2.0 and −1.0
• C)200 and 220
• D)1.0 and 2.0

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Definitions:

Autonomic Nervous System

The body system that takes messages to and from the body’s internal organs, monitoring such processes as breathing, heart rate, and digestion.

Cerebral Cortex

Part of the forebrain, the outer layer of the brain, responsible for the most complex mental functions, such as thinking and planning.

Cannon-Bard Theory

A theory of emotion that argues emotions and bodily responses occur simultaneously, not sequentially.

James-Lange Theory

The James-Lange theory proposes that emotions result from the perception of bodily reactions to stimuli, rather than directly from the stimuli.