Matrices — Question 44
Original QCE Vault practice · 5 marks
Q44 · Practice questionComplex familiar5 marks
QUESTION 44 (5 marks)
A three-class population is modelled by L=00.400.800.61.500,p0=15010050. a)Determine p1. [3 marks] b)Interpret the entry 0.6 in the context of a Leslie matrix.
[2 marks] WORKED SOLUTION
Practice marking scheme
5 marksANSWER(a) p1=(155,60,60)T; (b) 60% transition from the second to the third age class per step. Worked solution
(a) p1=Lp0=0.8(100)+1.5(50)0.4(150)0.6(100)=1556060. (b) The entry 0.6 means that 60% of the individuals in the second age class survive and transition into the third age class in one time step.
Determines the youngest class.
[1 mark]Determines the other two classes.
[2 marks]Gives the contextual interpretation.
[2 marks]Practice question aligned to the current QCAA syllabus; review the worked solution and marking criteria.
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