How do you calculate this problem?

Suppose there are two methods to test the amount of milkfat in 2% milk. The results of 5 trials for each method on the same milk shipment are shown below:

Method 1 Results - 1.8%, 1.8%, 1.8%, 1.8%, 1.8%

Method 2 Results - 1.8%, 2.0%, 2.0%, 2.1%, 2.1%

Suppose the true milkfat content is exactly 2%. Which method produced the least biased results?

Group of answer choices

Method 1

Method 2