A Normal density curve has which of the following properties?
A. It is symmetric.
B. It has a peak centered above its mean.
C. The spread of the curve is proportional to the standard deviation.
D. All of the above.

ALL OF THE ABOVE. A Normal density curve: It is symmetric, It has a peak centered above its mean, and the spread of the curve is proportional to the standard deviation.

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ALL OF THE ABOVE. A Normal density curve: It is symmetric, It has a peak centered above its mean, and the spread of the curve is proportional to the standard deviation.

Added 12/15/2015 1:02:37 PM

This answer has been confirmed as correct and helpful.

Confirmed by Andrew. [12/15/2015 7:18:55 PM]

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