Approximately what area is covered under the normal distribution curve between ±3 standard deviation?

Approximately what area is covered under the normal distribution curve

1.	Approximately what area is covered under the normal distribution curve between ±3 standard deviation?
A.	80%
B.	88.60%
C.	99.73%
D.	68.00%
Answer» D. 68.00%

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Approximately what area is covered under the normal distribution curve between ±3 standard deviation?

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