Population — Social Studies definition

The defined group a statistical claim concerns.

Where it is taught

In use

Public opinion describes views within a defined population at a time; it is not one permanent national voice.

Public Opinion, Polls, News & Digital Information

Questions using population

Problem 1

Why does a high support percentage among respondents not necessarily describe the population?
Answer and explanation

Selection and nonresponse may affect who answered. The percentage measures the supplied respondents under the question and method. Population inference needs evidence that the method supports that generalization, not just a large-looking share.

Problem 2

Invented poll: 100 invited people; 20 responses; 15 support and five oppose; no information about nonrespondents or representativeness. Calculate support and response rates, then qualify the population claim.
Answer and explanation

Support is 75 percent among respondents and the response rate is 20 percent of invitees. The supplied data do not reveal the other 80 views or establish a representative population estimate. The result accurately describes the replies under this method, but cannot be reported as 75 percent of all residents without further evidence. No sampling margin is supplied or justified by the packet.

Compute 15/20 and 20/100.

Identify absent views and method limits.

State the supported scope.

Response criteria

  • Explain the relevant institution or economic concept accurately; show correct calculations where needed.
  • Connect supplied evidence and stated assumptions to an explained conclusion.
  • Compare feasible options and their effects on different people without stereotypes.
  • Identify a limitation, tradeoff, uncertainty, or condition that qualifies the conclusion.

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