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.

Waec Model Questions Vol1 2021 Agricultural Science Objective / Multiple Choice Hard Difficulty
Question 42 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • AGRICULTURAL_SCIENCE • objective

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.

Answer Options

A. 7
Correct Answer B. 8
C. 10
D. 9
Correct Answer
B
Correct Option:
8

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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