Popular Lyrics

Which words appear most in songs?

Mark 10/20

This was always an interesting idea and the candidate was determined to pursue it, despite the fact that the available data, whilst good, was likely to limit the potential of the project. I did warn the student of this and suggested that they would find it difficult to come up with relevant processes. The candidate needed more depth of thought to get that data they had to work for them. They made a valiant attempt, but in the end, the mathematical processes let this project down. Still, the student came up with the idea and followed their area of interest. The determination is to be credited, but the execution was not good enough to produce more than the simple marks the project got. Even with potential limits, the candidate could have scored 2 or 3 more marks which would have been a significant difference. The project is a good example of one that was always problematic, but could have got a 12 or 13 out of 20.

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The marks explained


The introductions on pages 2 and 3 show clearly that there is a title, statement of task and a plan that outlines what is to come. Note enough detail and purpose to get to 3 and the project lacks some elements that would prohibit this too. There is a long preamble including large references that help demonstrate the candidate's interest in the project but which do not otherwise contribute a lot.


Page 6 shows us a snap shot of the data to give an idea. The raw data is included at the end. the candidate has collated data on a number of bands and the number of words used by that band. there is also data on the top three words used by the bands. The candidate has then generated an extra column that shows the percentage of the total words that is taken up by the top word. this is a helpful addition to the data that adds proportion since there is no other place where number of songs released is considered. The data, whilst interesting dies need careful handling to avoid irrelevant processes. the candidate was warned of this. It is possible though to do some useful analysis with this data and the candidate has tried. As such I am happy to conclude that data is organised in a form appropriate for analysis and sufficient in quality (just)and quantity (Only one of those required for 2 here) BUT does not meet enough of the criteria for 3. The data has limits, but the process was valid and had potential - although that potential was not realised.

CMathematical Processes1/5

I have tried hard to recreate the processes that the candidate performed here using their database but cannot reproduce the results. My conclusion, unfortunately is that there are not actually 2 correct processes required to get to 2/5 here. At least 2 processes are attempted to justify the 1.


There are attempts to conclude/interpret processes throughout to justify the award of 1 here. I have not found 2 conclusions that are consistent with the processes though. The box plots on page 7 are consistently interpreted.


On page 10 the candidate acknowledges the limits of the data. The top word is not the same for all bands, the word love may have appeared outside the top 5. The candidate recognises that this makes any conclusions unfair for the processes they chose. (this need not have been true for other processes)

FStructure and Communication2/3

There is certainly a logical structure to the project. the candidate has already been penalised for irrelevance and incorrectness, but has certainly attempted to tell a coherent story. Although I have been frustrated by the candidate's stubbornness I admire the determination to try and get a useful conclusion from the topic that interested them.

GNotation and Terminology1/2

Example - although the chi squared test is incorrect, the notation and terminology used is correct. This along with other examples through the project makes 'Some' correct notation and terminology justifiable.

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