They can be used to adjust the bending angle by reference, stroke measurement or angle measurement.
not sure if this is it but i hope it helps
He used art to communicate his ideas by expressing his feelings on his paintings, he created art to share his ideas of what he thinks that the world is or what it plans on becoming. He made the paintings have such an imprint on you that you couldn't look away.
Answer:
D.) They must be representative of the population.
Explanation:
In general a sample collected from a set of naturally distributed data set must also follow the bell curve or natural distribution
In other way round it can be said that sample set must have the same characteristics as that of the main set and hence a sample must be representative of the population.
Option D is correct
