Salmon You Can Count On

Estimating the size of a population of animals, like salmon, is very challenging. The "tag and recapture" technique provides surprisingly accurate results. Simulate this sampling process using colored disks to represent salmon. Use proportions to predict the total population from the distribution of tagged fish found in "captured" samples.

Grades Covered: 6 through 12
Subjects Covered: Life Science, Math

Curriculum topics:
  • Estimation of Populations
  • Proportions
  • Ecosystems
  • Data Samples
  • Data Sets
  • Sampling Methods

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