- 1 – Wrong
Looking at the graph of supplementary files, number of supplementary files in 2015 = 170
Number of journals = 18
Statement 1 is basically saying: At least half of the journals observed (0.5 x 18 = 9) published a paper whose supplementary files contained spreadsheet errors.
By looking at the data, this statement is clearly false.
- 2 – Correct
Number of files with genome errors in 2011 > 100
Number of files with genome errors in 2009 = 50
Therefore, statement 2 is correct.
- 3 – Wrong
Number of papers in Nature with errors = 23
Number of papers in BMC Bioinformatics with errors = 21. So this is clearly false.
Since only statement 2 is correct, B is the answer.