In a Marketing Class of 60 Students,the Mean and the Standard

question 81

Multiple Choice

In a marketing class of 60 students,the mean and the standard deviation of scores was 70 and 5,respectively.Use Chebyshev's Theorem to determine the number of students who scored less than 60 or more than 80:

• A)At least 45
• B)At most 15
• C)At most 45
• D)At least 15

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Definitions:

Respiratory Infection

An infection of the lungs, throat, or sinuses, often caused by bacteria, viruses, or fungi, leading to symptoms such as coughing, sneezing, and shortness of breath.

Virus

A microorganism that can only replicate inside the living cells of an organism and is capable of causing disease.

Rhonchus

A coarse rattling sound somewhat like snoring, usually caused by secretions in bronchial airways.

Rhonch

A low-pitched, snore-like sound heard upon auscultation of the chest, often caused by obstruction of the airways.