Compare the Two Histograms Below

question 169

Multiple Choice

Compare the two histograms below. Which statement is true?

• A) The shape of histogram A is the same as the shape of histogram B.
• B) The shape of histogram A is positively skewed compared to histogram B.
• C) The shape of histogram A is negatively skewed compared to histogram B.
• D) You cannot compare the shapes of these two histograms without the original data.

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Definitions:

REM Behavior Disorder

A rare disorder in which the mechanism that blocks the movement of the voluntary muscles fails, allowing the person to thrash around and even get up and act out nightmares.

EEG Record

A graphical record of electrical activity in the brain, measured by electrodes placed on the scalp, used in diagnosing neurological conditions and in neuroscience research.

Sleepwalking

Sleepwalking is a sleep disorder causing people to get up and walk while in a state of sleep, often having no memory of the activity.

Paradoxical Sleep Waves

Brain waves associated with REM (rapid eye movement) sleep, during which dreaming usually occurs and the body experiences atonia but the brain is active.