Gce Model Questions Vol1 2020 Agricultural Science Question 22
Practice objective / multiple choice question 22 from the 2020 Gce Model Questions Vol1 Agricultural Science examination.
A forest of 1000 ha is divided into 10 ha blocks arranged in a 10 × 10 grid. In any given year each block has an independent probability of 0.02 of becoming infected by a pest. If a block is infected, each of its orthogonal neighbouring blocks (sharing a side) has a 0.30 probability of becoming infected in the following year. Assuming infections persist once they occur and no control measures are applied, what is the expected number of blocks that will be infected after three years? Give your answer to one decimal place.
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About This Question
This is Gce Model Questions Vol1 2020 Agricultural Science Question 22. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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