The Standard Deviation of a Normal Distribution

question 113

Multiple Choice

The standard deviation of a normal distribution

• A) is always 0.
• B) is always 1.
• C) can be any value.
• D) cannot be negative.

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Definitions:

Antitussive

A type of drug that helps to reduce coughing, commonly used in the treatment of coughs caused by the common cold or flu.

Expectorant

A type of medication that helps clear mucus and other secretions from the airways, chest, and throat.

Shortness of Breath

A condition where an individual feels unable to draw a deep breath or feels suffocated.

Acute Respiratory Disease

A sudden onset of respiratory illness, such as pneumonia or acute bronchitis, characterized by symptoms like coughing and shortness of breath.