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OpenStudy (anonymous):
how do you get a percentage from a z score using the table for a standard normal curve? my z score is -2.27
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OpenStudy (amistre64):
it depends on the table; does your table of .9s in it? or .4 about the highest?
OpenStudy (amistre64):
and what percentage you need; less than z, or greater than z?
OpenStudy (anonymous):
OpenStudy (anonymous):
z < -2.27
OpenStudy (amistre64):
that table measures the area FROM THE MEAN
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OpenStudy (amistre64):
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OpenStudy (amistre64):
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