12 You must show detailed reasoning in this question.
In the summer of 2017 in England a large number of candidates sat GCSE examinations in both mathematics and English. 56\% of these candidates achieved at least level 4 in mathematics and \(80 \%\) of these candidates achieved at least level 4 in English. 14\% of these candidates did not achieve at least level 4 in either mathematics or English.
Determine whether achieving level 4 or above in English and achieving level 4 or above in mathematics were independent events.