Gce Model Questions Vol1 2025 Agricultural Science Question 32
Practice objective / multiple choice question 32 from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
On two farms the incidence of bovine respiratory disease (BRD) was recorded over a six‑month period. Farm A, which used a BRD vaccine, had 12 cases among 200 cattle. Farm B, which did not vaccinate, had 30 cases among 180 cattle. (i) Calculate the incidence proportion on each farm using (I = \dfrac{\text{cases}}{\text{total}}\). (ii) Determine the relative risk (RR) of disease for vaccinated versus unvaccinated cattle. (iii) Express the percentage reduction in risk associated with vaccination.
Answer Options
About This Question
This is Gce Model Questions Vol1 2025 Agricultural Science Question 32. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.