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#rank-selection

1 question from Genetic Algorithms

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Question 1: Single choice

mediumAI-checkedGenetic Algorithms

Five individuals have fitness values 90, 4, 3, 2 and 1. What is the probability that the fittest one is chosen in a single selection step under roulette-wheel selection, and under linear rank selection with P(i)=2(n−i+1)n(n+1)P(i) = \frac{2(n - i + 1)}{n(n + 1)}, where rank i=1i = 1 is the best?

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