The results of a fishing competition show that the average weight of a Kahawai caught is 2.5kg with a standard deviation of 2kg, and the average weight of a Gurnard caught is 0.8kg with a standard deviation of 0.1kg. Michael caught 2.53kg of Kahawai and 0.86kg of Gurnard. Tony caught 2.59kg of Kahawai and 0.8kg of Gurnard. While they both caught a total of 3.39kg of fish, Tony claims that his total is better.

Explain.