Resistance of a wire

From my group’s graph I can see that as the length of wire increases so does the resistance, but at 60cm there is a steep fall in resistance. This could be down to a few factors but it is probably temperature, which I’ll discuss at a later point. It is a positive correlation if we ignore the plot at 60cm as it is an anomalous result.
In the other graph which I obtained from another group you can see that there is a roughly equal amount of increase between each length, until 100cm where it is the same as the resistance at 90cm. The length of wire and resistance are directly proportional to one another meaning that this graph has a positive correlation.

The results have proved that the length of wire does affect the resistance of the wire and my...