Collecting and Interpreting Data Question
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Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.4
Why do most z-tables not include z-scores smaller than -4 or larger than 4?
- Such small or large z-scores are not possible.
- The percentage of values that are between a very small z-score and a very large z-score is negligible.
- The percentage of values that are less than a z-score of -4, or greater than 4, is negligible.
- It would make the tables too large. There are separate tables for such values.