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OpenStudy (anonymous):
What z-value leaves 80 % of the normal distribution to its right?
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OpenStudy (anonymous):
you need to look for z-score corrresponding to "0.2" in your z-score table
OpenStudy (anonymous):
How do I find that?
OpenStudy (anonymous):
z-score = -0.84
OpenStudy (anonymous):
Is it negative or positive?
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OpenStudy (amistre64):
how you do it depends on what you are able to use. got a ti83?
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