A survey was conducted asking students from years $5$5, $6$6, $7$7 and $8$8 what eye colour they have.
The results are shown below using divided bar graphs.
Which grade has the largest percentage of brown-eyed children?
Year 6
Year 7
Year 5
Year 8
Which grade has the largest percentage of blue-eyed children?
Year 5
Year 7
Year 8
Year 6
Which grade has the smallest percentage of black-eyed children?
Year 7
Year 5
Year 6
Year 8
Which grade has no green-eyed children?
Year 8
Year 5
Year 7
Year 6
Which grade has the same percentage of green-eyed children as blue-eyed children?
Year 5
Year 6
Year 8
Year 7
The weight (in kilograms) of a group of men and women were recorded and presented in a stem and leaf plot as shown.
Study the bar graph below which shows the changes in tourism rates in different cities during 2011 and 2012, then answer the following questions.