Part 2 Grade 7 OST Practice Test Questions TOC | Lumos Learning

Part 2 Question & Answer Key Resources Grade 7 Mathematics - Skill Builder + Ohio State Test (OST) Practice

Grade 7 Mathematics - Skill Builder + Ohio State Test (OST) Practice Part 2

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A survey was made of local citizens. The survey was designed to have proportional representation of the general population by age categories. The table shows the number of citizens in each age category in the community. If the survey included 25 citizens from ages 20-29, how many must it have included from ages 40-49? Type your answer in the box below.

Resource: Question

Question Type: Numeric Answer

Standard(s):7.SP.A.1

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.

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