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For a Normal Distribution Curve with a Mean of 15

Question 44

Multiple Choice

For a normal distribution curve with a mean of 15 and a standard deviation of 3, which range of the variable defines an area under the curve corresponding to a probability of approximately 68%?


A) from 13.5 to 16.5
B) from 12 to 18
C) from 15 to 21
D) from 9 to 21

Correct Answer:

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