Consider the Experiment of Tossing a Fair Coin Three Times

question 13

Multiple Choice

Consider the experiment of tossing a fair coin three times and observing the number of heads that result (X = number of heads) . What is the variance for this distribution?

• A) 1.5
• B) 1.22
• C) .75
• D) .87

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Definitions:

Ecstasy

A psychoactive drug primarily used for recreational purposes, known scientifically as MDMA, which induces feelings of increased energy, euphoria, emotional warmth, and distortions in sensory and time perception.

Amphetamines

One type of stimulant drug.

Hallucinations

Perceptions in a conscious and awake state in the absence of external stimuli, which have qualities of real perception.

Blood Pressure

The force exerted by circulating blood upon the walls of blood vessels, a critical indicator of cardiovascular health.