UsableStats: According to the standard normal curve, _____% of values should fall; within +/

Question 291:

Asked on July 26, 2008

According to the standard normal curve, _____% of values should fall;
within +/ – 1 standard deviation(s) from the mean;
+/- 3 standard deviations from the mean _________;
+/- 3.5 standard deviations from the mean__________?

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