A-LevelComputer ScienceProgramming Paradigms and Program StructureMay/June 2023Paper 2 Q110 Marks
A program calculates the postal cost based on the weight of the item and its destination. Calculations occur at various points in the program and these result in the choice of several possible postal costs. The programmer has built these postal costs into the program. For example, the postal cost of $3.75 is used in the following lines of pseudocode: IF Weight < 250 AND ValidAddress = TRUE THEN ItemPostalCost ← 3.75 // set postal cost for item to $3.75 ItemStatus ← "Valid" // item can be sent ENDIF
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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