A Data Set Has a Mean of 60 and a Standard

question 51

Multiple Choice

A data set has a mean of 60 and a standard deviation of 5. Which of the following might possibly be true?

• A)More than 90% of the data values are between 45 and 75.
• B)No less than 30% of the data values are less than 50 or greater than 70.
• C)No more than 50% of the data values are between 50 and 70.
• D)At least 15% of the data values are less than 45 or greater than 75.

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Definitions:

Influenza

A contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs, often leading to severe health complications.

Allergy

An immune system reaction that occurs in response to a normally harmless substance, causing symptoms such as itching, sneezing, or rash.

No Fever

A condition where the body temperature remains within the normal range, indicating the absence of fever.

Common Cold

A viral infectious disease of the upper respiratory tract that primarily affects the nose, throat, sinuses, and larynx, characterized by symptoms like coughing, runny nose, and sore throat.