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Question 291:



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These are the properties of the normal curve. Take a look at the interactive graph of the standard normal curve and you'll see what percent of area 1, 3 and 3.5 standard deviations encompases.

  1. 68%
  2. 99.7%
  3. 99.9%

You can also check these by entering 1, 3 and 3.5 in the z-score to percentile calculator.

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