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Type: Multiple-Choice
Category: Collecting and Interpreting Data
Level: Grade 11
Standards: HSS-ID.A.4
Author: nsharp1
Created: 3 years ago

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Collecting and Interpreting Data Question

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Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.4

Which of the following is true concerning z-scores?
  1. Z-scores are always positive.
  2. Z-scores are negative only when the population mean is negative.
  3. Z-scores are positive if the mean is less than the raw score, and negative if the mean is greater than the raw score.
  4. Z-scores are positive if the standard deviation is greater than the raw score, and negative if the standard deviation is less than the raw score.