Question

A length measure can never be more than one half unit in error. why is this the case?can someone please answer this question.

Answer 1

This is because the degree of accuracy is half a unit each side of the unit of measure

`\text{When an instrument measures in '1' s any value betwe}en\text{ 6}(1)/(2)\text{ and 7}\frac{1}{2\text{ }}\text{ is measured as 7}`