Answer :
Answer:
Given merely 40 butterflies were marked, assumed that there were multiple captures of both marked and unmarked butterflies, that the butterflies caught in traps were on the loose to be caught again. There are two mathematical solutions for this, both yielding the same answer which is 100.
• First, to each marked butterfly was taken twice (40 marked X2 = 80 captured) then of the unmarked butterflies the 120 captured must relate to 60 actual butterflies. In which 40 + 60 = 100.
• Secondly, by means of ratios in which 80/200 = 40/X. In this case X also = 100 that will result to the estimated size of the population of wilson park is 100.
Explanation:
Population density is the number of individuals per unit area. The total population of the butterfly in the garden is 180.
Given here,
The number of butterflies in first capture = 100
The number of butterflies in the second capture,
= 100 -20 = 80
Since there was 20 butterfly recaptured.
So, the total population of butterflies in the park,
100 + 80 =180
Therefore, the total population of the butterfly in the garden is 180.
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