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by ivonagui
Mon Jun 15, 2009 6:39 pm
Forum: Statistics
Topic: [SPLIT] test score was in top 20%: z-score is at least...?
Replies: 1
Views: 2372

[SPLIT] test score was in top 20%: z-score is at least...?

a person received a test score that was in the top 20% of everyone who has taken the test. the test scores are normally distributed. this perosn's Z score must be at least what/

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