Your device is currently offline. You can view downloaded files in My Downloads.

Understand statistics and random sampling (7.SP.A.1)

Understand that statistics can be used to gain information about a population by examining a sample of the population; generalizations about a population from a sample are valid only if the sample is representative of that population. Understand that random sampling tends to produce representative samples and support valid inferences.


  • Identify a random sample

    In this lesson you will learn how to collect data about a population by identifying a sample of the population.

  • Identify a representative sample

    In this lesson you will learn how to identify representative samples by differentiating between biased and unbiased methods of sampling.