SOLUTION: what percentage of the area of the standard normal distribution is between z = -2.00 and z = +2.00? How do you know this?

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Question 456914: what percentage of the area of the standard normal distribution is between z = -2.00 and z = +2.00? How do you know this?
Answer by robertb(5830) About Me  (Show Source):
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95%. This is based on the empirical, or 68-95-99.7, rule for normal distributions.