Curriculum placement
Grade 7. This describes the skill, not a learner estimate.
Samples and the populations they represent
Explain why sample selection affects population conclusions
Problem types
- Choose a representative sample
- Estimate from a random sample
- Many samples, one estimate
Builds on
- Asking a statistical question
- Median and spread of signed data · Useful idea
The median of a sample estimates the center of a population, and the sample spread shows how variable that estimate is.
Leads to
Related skills
- Probability of one event · Related idea
The proportion in a representative sample estimates the probability that a random member has a given trait.
- Center, spread, and shape of a distribution · Shared foundations
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