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Find the area of the shaded region. The graph depicts the IQ score of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15.

The shaded region numbers are 85-120

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3 answers
  1. enter your data here.

    http://davidmlane.com/hyperstat/z_table.html

    It's a great Z table site.

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  2. 0.7937

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  3. 6cm ×5cm

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