If the Mean of a Normal Distribution Is Negative

question 59

Multiple Choice

If the mean of a normal distribution is negative,

• A)the standard deviation must also be negative
• B)the variance must also be negative
• C)a mistake has been made in the computations, because the mean of a normal distribution cannot be negative
• D)None of the alternative answers is correct.

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Definitions:

RSV

Respiratory Syncytial Virus, a common and highly contagious virus that causes respiratory infections, particularly in children.

Bronchiolitis

An inflammatory respiratory condition often caused by a viral infection, primarily affecting the small airways (bronchioles) in the lungs, commonly seen in young children.

Pneumonia

An infectious respiratory condition characterized by the inflammation of the air sacs (alveoli) in one or both lungs, often filled with fluid or pus.