Opinions on Co-education People were asked whether they thought co-education is good or not. The graph shows results of two surveys, one done in 2012 and the other done in 2015.
Yes means they believe co-education is good and No means they do not believe that.
What does the graph tell us about changes in opinions about co-education? Explain.
![1971_Opinions.png](https://secure.tutorsglobe.com/CMSImages/1971_Opinions.png)