coins

Why did I place my coins like this?
If you figure out my very easy puzzle you get a prize.

I can give out very vague hints if you want me too, but I have faith in you.

Is it ipmortant that we knows the names of the people? I only recognize Linkin

I am sorry for making typos on your thread. Would you like me to fix them?

It is fine, typos add character. Since you were apologetic I will answer your question. The answer not really, but you should learn the names anyway.

I will endeavour to learn the names of important figures from foreign countries.

I'm guessing they're the same sizes as Canadian coins: dime, penny, nickel, quarter?

Here's my guess:
  x axis: Value
  y axis: Mass

Fun fact: If you placed the coins' positions on this to scale, you could connect the dime, quarter, and half-dollar with a straight line through (0,0)

did you drop your coins and that's just how they fell

Kieros got it, nice job.

here's your prize

The coin that's a different colour is facing in the opposite direction... Is it a metaphor for the racial divide?

What kinda fake money is this wheres the queen

All I know is monopoly money.

an interesting graph but you hid your axes which is a statistical sin

3/10 see me after class

The two at the top are from 2013, but the bottom two are from 1988 and 1983. So they could also be considered to be arranged in recency of minting, from top to bottom.