Sample Proportion in Statistics: Definition & Formula


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question 1 of 3

If Mr. Smith polls 240 people and finds that 112 will vote for Bill Jones, which of the following is true?

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1. _____ are used because the population in its entirety is inaccessible and would require polling too many people.

2. Which of the following situations would give us the best estimate of a population proportion?

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About This Quiz & Worksheet

Sample proportions in statistics are useful when dealing with large populations. This quiz will test your knowledge of the main aspects of culling a sample proportion with practice problems and definitions.

Quiz & Worksheet Goals

This assessment will gauge your knowledge of sample proportions including:

  • Definition
  • Practice problems
  • Margin of error

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the lesson on sample proportions
  • Problem solving - use acquired knowledge to solve practice problems involving sample proportions of a population
  • Interpreting information - verify that you can read information regarding the margin of error and interpret it correctly

Additional Learning

For more information on sample proportions of populations, review the lesson titled Sample Proportion in Statistics: Definition & Formula. This lesson highlights important aspects of sample proportion including:

  • Definition and formula
  • Ensuring need for proportion
  • Ensuring accuracy of proportion
  • Examples with graphs