Neco Model Questions Vol1 2021 Civic Education Question 39
Practice objective / multiple choice question 39 from the 2021 Neco Model Questions Vol1 Civic Education examination.
In a city, the probability that a randomly selected student is involved in cultism is \(0.04\). The police conduct random checks on 30 students. If at least one student is found, the police will launch a campus‑wide awareness programme that reduces the probability of involvement for each student by \(30\%\) (the reduction is multiplicative). Assuming independence of students, calculate the expected overall probability that a randomly selected student will be involved in cultism after the programme, given that the programme is launched only if at least one case is found. Give your answer rounded to four decimal places.
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About This Question
This is Neco Model Questions Vol1 2021 Civic Education Question 39. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Civic Education examination.
Difficulty level: Hard .
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