The pie chart illustrates proportions of five proposed factors that were causing poor academic performance in schools in a certain country in 2011.
Overall, the cumulative share was 100% as the survey shows that while working parents was the major factor causing poor learning outcomes, lack of revision was a minor factor.
The reasearch indicated that main stem of poor academic results was working parents which accounnted for 35%. This was followed by the upbringing which constituted 27% of the respondents claiming so, then 20% was those who said that unskilled teachers result in pathetic performance.
On the other hand, the percentage of those who thought that poor facilities lead to poor results was 10%. Ultimately, lack of adequate revison received the least share of votes, which was at only 8%.
