Plants grow naturally towards the strongest source of light, this is called phototropism. They do this in order to maximise their exposure to the sun and increase the amount of photosysnthesis (and therefore growth). This is a survival mechansim.
researcher will either use random assignment or matching What do random assignment and matching have in common? They are both designed to create equivalent groups of participants. Random assignment is to random selection as _____ is to _____
Chance error and bias are two different forms of error associated with sampling. Differentiate between random, or chance, error and bias. The error that is associated with the unpredictable variation in the sample is called a random, or chance, error. It is only an error in the sense that it would automatically be corrected if we could survey the entire population.