Capture Recapture
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Capture-Recapture method used for?
Back
The Capture-Recapture method is used to estimate the population size of a species in a given area.
Tags
CCSS.7.SP.A.2
2.
FLASHCARD QUESTION
Front
How do you estimate the total population using the Capture-Recapture method?
Back
The estimate is calculated using the formula: (Number of marked individuals in the second sample / Total number of individuals in the second sample) = (Number of marked individuals in the first sample / Total population size).
Tags
CCSS.7.SP.A.2
3.
FLASHCARD QUESTION
Front
In a Capture-Recapture study, what does marking an individual allow researchers to do?
Back
Marking allows researchers to identify previously captured individuals in subsequent samples.
Tags
CCSS.7.SP.A.2
4.
FLASHCARD QUESTION
Front
If 50 crabs are captured and 5 are marked in a second sample of 25, how do you estimate the total crab population?
Back
Using the proportion of marked crabs in the second sample, the estimate is: (50 marked crabs / Total population) = (5 marked crabs / 25 caught), leading to an estimated population of 250.
Tags
CCSS.7.SP.A.2
5.
FLASHCARD QUESTION
Front
What is the significance of the sample size in Capture-Recapture studies?
Back
A larger sample size generally leads to more accurate estimates of the population size.
Tags
CCSS.7.SP.A.2
6.
FLASHCARD QUESTION
Front
What assumptions are made in the Capture-Recapture method?
Back
Assumptions include that the marked individuals mix evenly with the unmarked population and that there are no births, deaths, immigration, or emigration between captures.
7.
FLASHCARD QUESTION
Front
What is the formula for estimating population size in Capture-Recapture studies?
Back
The formula is: N = (M * C) / R, where N is the estimated population size, M is the number of marked individuals, C is the total number of individuals captured in the second sample, and R is the number of marked individuals recaptured.
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