A Quiz Consists of 780 True or False Questions

question 118

Multiple Choice

A quiz consists of 780 true or false questions. If the student guesses on each question, what is the standarddeviation of the number of correct answers?

• A) 13.96424
• B) 0
• C) 2
• D) 19.7484177

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Definitions:

Lead Poisoning

A medical condition caused by high levels of lead in the body, which can damage the nervous system, kidneys, and other major organs.

Subdural Hemorrhages

Bleeding that occurs beneath the dura mater, one of the layers of tissue surrounding the brain, often due to trauma.

Shaken-Baby Syndrome

A serious brain injury resulting from forcefully shaking an infant or toddler, which can lead to permanent brain damage or death.

Sudden Infant Death Syndrome

A sudden, unexplained death of an apparently healthy infant under one year old, often occurring during sleep, commonly referred to as crib death.