Neco 2022 Civic Education Question 24
Practice objective / multiple choice question 24 from the 2022 Neco Civic Education examination.
A study of 2000 secondary school students found that 12% have tried marijuana, 5% have tried cocaine, and 3% have tried both. An anti‑drug programme reduces the probability of trying marijuana by 30% and cocaine by 40% for students who have tried only one of the drugs, while for those who have tried both, the reduction is 20% for each drug. Assuming reductions apply independently, estimate the expected number of students who will have tried at least one of the two drugs after the programme. Round your answer to the nearest whole number.
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About This Question
This is Neco 2022 Civic Education Question 24. It is one of the objective questions from the 2022 Neco Civic Education examination.
Difficulty level: Hard .
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