The integer examples really threw me off too.
6.20 ≈ 10.00; 1.55 ≈ 1.00; 2.37 ≈ 2.65
6.20 ≈ 10.00; 1.55 ≈ 1.00; 2.37 ≈ 2.65
That's like when my friend tortured her kid (and me) by asking how old I was, which was answered with "75". That is a very wide margin of error there.