The Standard Deviation of a Poisson Random Variable Is the Square

question 50

True/False

The standard deviation of a Poisson random variable is the square root of its mean.

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Definitions:

Post-Traumatic Stress Disorder

A psychological condition resulting from exposure to or being a direct witness to a horrifying incident, leading to recurring flashbacks, nightmares, and intense anxiety.

Rapid Heart Rate

A condition where the heart beats significantly faster than normal, which can be a response to stress, exercise, or medical conditions.

Anxiety

A feeling of worry, nervousness, or unease about something with an uncertain outcome, often accompanied by physical sensations.

Helplessness

A psychological state resulting from experiencing uncontrollable events, leading to perceived lack of control and diminished motivation to act, often associated with depression.