A product tester measures four different sizes of bottled water to see if they are filled accurately. The table shows the results. Which sample had the least percent error?

The sample 4 had the least percent error.

Explanation:

We know that percent error =

Sample 1

Percent error = = = 0.497512437811%≈ 0.50%

Sample 2

Percent error = = 0.313479623824%≈ 0.31%

Sample 3

Percent error = = 0.27.85%≈ 0.28%

Sample 4

Percent error = = 0.1560062%≈ 0.16%

Hence, it is found that sample 4 has least percent error.