MathsheetsMake a worksheet →7.SP.A.1
A sample can tell you about the whole group — but only if it is chosen fairly.
Worksheets for this standard 1 topic
The standard, officially
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.