standard_description: 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.
problem_activity: Task
Rosa ran $\frac13$ of the way from her home to school. She ran $\frac14$ mile. How far is it between her home and school?


aligns: no