Jimmy Received a Z-Score of +2

question 34

Multiple Choice

Jimmy received a z-score of +2.0 on a math test.What do we know about Jimmy's performance,assuming that the math test scores are distributed normally?

• A)He scored better than 16% of the other students.
• B)He scored better than 34% of the other students.
• C)He scored better than 50% of the other students.
• D)He scored better than 84% of the other students.
• E)He scored better than 98% of the other students.

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Definitions:

K-complexes

Brainwave patterns that occur during stage 2 of the sleep cycle, representing a response to environmental stimuli.

Sleep Spindles

Brief bursts of brain activity observed during stage 2 of non-REM sleep, associated with memory consolidation and learning.

EEG

Electroencephalography, a non-invasive method to record electrical activity of the brain used in medical and research settings to examine brain function.

REM Sleep

A unique phase of sleep characterized by rapid eye movement, during which vivid dreams commonly occur.