CCSS.Math.Content.HSS-IC.B

MathGrades 9–12Making Inferences and Justifying Conclusions

Standard Cluster

Make inferences and justify conclusions from sample surveys, experiments, and observational studies

Common Core State Standards for Mathematics · High School — Statistics and Probability

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Standards in This Cluster

CCSS.Math.Content.HSS-IC.B is a cluster heading. These are the individual standards under it.

Teacher's field guide

What This Cluster Means

What Students Need to Do

Students draw reasonable conclusions from surveys, experiments, and observational data. They explain how sampling and study design affect generalization, bias, and cause-and-effect claims.

What Mastery Looks Like

Students identify the population, sample, variables, and study type. They use the data to support a conclusion, state its limits, and distinguish association from causation.

Common Misconceptions

Students often confuse random sampling with random assignment. They may assume a large sample removes bias, or claim that an observed association proves causation.

How to Assess It

Give this prompt: “A school randomly selects 80 students and compares sleep hours with grades. What conclusions are justified, and can causation be claimed?”

Lesson moves

Ways to Teach It

  1. Draw repeated samples of colored beads from a bag, record proportions, and compare how sample results vary around the full bag proportion.

  2. Write a response to: “When can results describe a population, and when can they support a cause-and-effect claim?”

  3. Sort study cards into sample survey, experiment, or observational study, then match each card with a justified conclusion.

  4. Analyze a news poll by checking its sample, wording, margin of error, population, and whether the headline matches the evidence.

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Printable HSS-IC.B Worksheet

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