O-LevelComputer ScienceProgramming2210/21 · May/June 2017 · Q24 Marks
This section of program code asks for 50 numbers to be entered. The total and average of the numbers are calculated. ``` 1 Total = 0 2 Counter = 50 3 PRINT 'When prompted, enter 50 numbers, one at a time' 4 REPEAT 5 PRINT 'Enter a number' 6 INPUT Number 7 Total + Number = Total 8 Number = Number + 1 9 UNTIL Counter = 50 10 Average = Number * Counter 11 PRINT 'The average of the numbers you entered is ', Average ``` There are four errors in this code. State the line number for each error and write the correct code for that line.
- Error 1Error 1 Line number Correct code[1]
- Error 2Error 2 Line number Correct code[1]
- Error 3Error 3 Line number Correct code[1]
- Error 4Error 4 Line number Correct code[1]
Mark scheme
Marking points from the official mark scheme (May/June 2017). The mark or mark type is shown in brackets.
- [1] 1 mark for each error identified and suggested correction (the corrected code must be written in full)
- Line 2 Correct code Counter = 0
- Line 7 Correct code Total = Total + Number
- Line 8 Correct code Counter = Counter + 1
- Line 10 Correct code Average = Total / Counter // Average = Total / 50
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