The total area under a normal distribution curve to the left of the mean is always:
A)equal to 1
B)equal to zero
C)equal to 0.5
D)greater than .5

Name: The total area under a normal distribution curve to the left of the mean is always: A)equal to 1 B)equal to zero C)equal to 0.5 D)greater than .5
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Question

Quizplus · Accepted Answer

The total area under a normal distribution curve is 1, and since the curve is symmetric about the mean, the area to the left of the mean is 0.5.

The Total Area Under a Normal Distribution Curve to the Left