Petersen capture-recapture formula (Edexcel GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
If M=60, n=40 and m=6, what is the Petersen estimate N?
If M=60, n=40 and m=6, what is the Petersen estimate N?
400
Calculate N when M=30, n=50 and m=10.
Calculate N when M=30, n=50 and m=10.
150
Find the estimate when M=25, n=20 and m=5 using Petersen.
Find the estimate when M=25, n=20 and m=5 using Petersen.
100
Given M=40, n=80 and estimated N=320, how many marked recaptures m were caught?
Given M=40, n=80 and estimated N=320, how many marked recaptures m were caught?
10
In a study M=50, n=30 and reported m=40. What is the immediate error?
In a study M=50, n=30 and reported m=40. What is the immediate error?
m cannot exceed n
If M=15, n=17, m=2, what is the rounded population estimate?
If M=15, n=17, m=2, what is the rounded population estimate?
128
If marking makes animals avoid traps, the Petersen estimate will tend to:
If marking makes animals avoid traps, the Petersen estimate will tend to:
Overestimate the population
With M=10, n=8 and m=1 what is the main reliability issue?
With M=10, n=8 and m=1 what is the main reliability issue?
Very few marked recaptured
If M=80 and in recapture n=20 with m=8, what is N?
If M=80 and in recapture n=20 with m=8, what is N?
200
A researcher marks 30 frogs, recaptures 50 with 5 marked. Estimate population.
A researcher marks 30 frogs, recaptures 50 with 5 marked. Estimate population.
300