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GRASSHOPPERS - PowerPoint PPT Presentation


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GRASSHOPPERS. In a field lives a population of rare Grasshoppers. The field is a square 100m by 100m. The Grasshopper International Trust (GIT) plan to carry out a survey to discover how many Grasshoppers live in the field. The GIT are very short-staffed at the moment

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Presentation Transcript
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In a field lives a population of rare Grasshoppers. The field is a square 100m by 100m. The Grasshopper International Trust (GIT) plan to carry out a survey to discover how many Grasshoppers live in the field.

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The GIT are very short-staffed at the moment

due to the ‘Cricket Crunch’ and can’t survey the

whole field. They decide to break the field in to

smaller squares as shown:

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Discuss how the GIT could estimate the total Grasshopper population without looking at the entire field.

  • How accurate are their results likely to be?
  • How could they make their results more accurate?
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