Waec Model Questions Vol1 2021 Agricultural Science Question 42
Practice objective / multiple choice question 42 from the 2021 Waec Model Questions Vol1 Agricultural Science examination.
According to Rogers' diffusion of innovations model, the proportion of adopters at time t (years) is given by P(t)=100/(1+ae^{-bt}). At t=2 years the adoption rate is 20 % and at t=5 years it is 50 %. Estimate the year when adoption will reach 80 %. Round to the nearest whole year.
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About This Question
This is Waec Model Questions Vol1 2021 Agricultural Science Question 42. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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