Under the normal curve, the probability of a score occurring below the mean is
A) .68
B) .50
C) 2 to 1
D) .68%

Name: Under the normal curve, the probability of a score occurring below the mean is A) .68 B) .50 C) 2 to 1 D) .68%
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Question

Quizplus · Accepted Answer

The normal curve is symmetrical, so the mean is the midpoint of the curve, with 50% of the scores falling above it and 50% falling below it. Therefore, the probability of a score occurring below the mean is .50 (or 50%).

Under the Normal Curve, the Probability of a Score Occurring