2016 VCAA Specialist Mathematics Exam 2 Solutions – PDF 136KB

Thanks to Ray Rozen of RMIT for pointing out that in Section A Q18, the oranges and lemons are all randomly selected so the masses of the fruits are independent. Hence Var(O1+O2+O3+L1+L2)=Var(O1)+Var(O2) …etc
The answer is A.

Thanks to Gavin Rogers for pointing out a mistake in SECTION B Q2f answer. It should not have pi in each number.