Examination 2 is 60 marks of short-answer and extended-answer questions in parts, in 90 minutes of writing after 15 minutes of reading: 24 marks on data analysis and 12 each on recursion and financial modelling, matrices, and networks and decision mathematics.
Examination 1
40 multiple-choice questions, 90 minutes
Examination 2
60 marks of short and extended answers, 90 minutes
Study score
Each examination 30%; coursework 40%
Technology
CAS and a scientific calculator, one bound reference
Answer what the part asks
Round as the question says: money usually to the nearest cent, and a least squares coefficient to the places asked.
Interpret in context: name both variables and the units when you describe a slope, an intercept or r squared.
Show the method a part asks for: a recurrence relation's first terms, a step of Prim's algorithm, a forward scan.
Try 2 questions
Question 1Examination 1 style
Bags of pool salt sold each quarter. 2023: 318, 412, 505, 285. 2024: 340, 446, 538, 300. 2025: 372, 470, 584, 334.
Year
Quarter 1
Quarter 2
Quarter 3
Quarter 4
2023
318
412
505
285
2024
340
446
538
300
2025
372
470
584
334
A pool shop sold these numbers of bags of salt each quarter (quarters 1 to 4 in order): 2023: 318, 412, 505, 285; 2024: 340, 446, 538, 300; 2025: 372, 470, 584, 334. Seasonal indices are calculated from all three years, using each year's quarterly mean. What is the seasonal index for quarter 3, correct to three decimal places?
Question 2Examination 1 style
A loan is modelled by the recurrence relation V0=24000,Vn+1=1.0055Vn−520, where Vn is the balance of the loan, in dollars, after n monthly repayments. Which statement describes this loan?