Exhibit 2-1 The Numbers of Hours Worked (Per Week)by 400 Statistics Students

question 8

Multiple Choice

Exhibit 2-1
The numbers of hours worked (per week) by 400 statistics students are shown below.

-Refer to Exhibit 2-1.The percentage of students working 19 hours or less is

• A)20%
• B)25%
• C)75%
• D)80%

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Definitions:

Manic Episode

A period of abnormally elevated mood, characterized by increased energy, activity, and often risk-taking behaviors, usually seen in bipolar disorder.

Hypoactive

Displaying lower than normal activity or responsiveness.

Serotonin

A neurotransmitter that plays a key role in mood regulation, sleep, digestion, and other bodily functions.

Dopamine

A neurotransmitter in the brain that plays a major role in reward-motivated behavior and is involved in many functions, including motivation, arousal, and motor control.