Can a graph be testable

I don't know if this will answer your question but: yes.

hopefully this helps

Explanation:

A graph property P is testable if there is a randomized algorithm T , that can distinguish for every ϵ > 0 and with probability 2/3, between graphs satisfying P and graphs that are ϵ-far from satisfying P, while making a number of edge queries2 which is bounded by some function q(ϵ)

what school and grade?

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.