Which of the Following Correctly Describes the Normal Probability Distribution

question 12

Multiple Choice

Which of the following correctly describes the normal probability distribution?

• A) It is single-peaked above the random variable's mean, median, and mode, all of which are equal to one another.
• B) It is perfectly symmetric about this peaked central value and, thus, said to be bell-shaped.
• C) It features tails extending indefinitely in both directions from the center, approaching (but never touching) the horizontal axis, which implies a positive probability for finding values of the random variable anywhere between minus infinity and plus infinity.
• D) All of these.
• E) None of these.

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