Khan Academy (English - US curriculum)
Math by grade
Eureka Math/EngageNY
Algebra 2 (Eureka Math/EngageNY)
Module 4: Inferences and conclusions from data
Topic B: Lessons 10-11: Normal distributions
Normal distribution problem: z-scores (from ck12.org)
Normal distribution problem: z-scores (from ck12.org)
Z-score practice
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