Mean, Median and Mode...

Our topic last week in Statistics is about mean, median and mode. Our teacher used different symbols and different way of teaching and I really liked it. I really understand our lesson, unlike in our first year statistics, nothing was saved in my mind.

But, I still have another problem, what could be my research about?
I really don't have any idea. I have something on my mind in which I could use for my research. Please help me...