Waec Model Questions Vol1 2017 Commerce Question 19
Practice objective / multiple choice question 19 from the 2017 Waec Model Questions Vol1 Commerce examination.
A new mobile‑payment service follows the logistic adoption model \(P(t)=\frac{K}{1+e^{-a(t-t_0)}}\) where \(K=1,200,000\) potential users, \(a=0.4\) per month and \(t_0=6\) months. After three months a promotional campaign raises the growth rate by 25% for the next four months (i.e., \(a\) becomes 0.5 during months 4‑7). After month 7 the growth rate returns to the original \(a=0.4\). If the service is launched at month 0, how many users are expected at the end of month 12? (Round to the nearest whole number.)
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About This Question
This is Waec Model Questions Vol1 2017 Commerce Question 19. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Commerce examination.
Difficulty level: Hard .
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