1.
Seconds
We thinks it is 100m mens
We know it is a running event because there is a negative correlation in the graph. The world record is 9.58, but Usain Bolt didn’t do it in the Olympics, but he did it in the World Championships. The OLYMPIC record is 9.63 which was set in 2012, and we can see on the graph that the latest dot is above 2012 so therefore we know that this is the men's 100m..
2.
The distance in metres
Name of event: long jump
We know that the distances are getting longer because there is a positive correlation in the graph. We also know that the records are getting longer for the same reason. Most long jump records are around 8-9 metres So it is probably long jump.
4.
Metres
Name of event: Men’s High jump
Most high jumps at the Olympics are 2-2.5 metres, and it also shows these lengths on the graph. Also, there is a positive correlation in the graph so the records are getting bigger.