Question

Components of Experiments Quick Check
4 of 5
Kelvin is running an experiment on the growth of fern house plants with artificial light versus real light. Which option would have the least amount of bias during the random selection process?(1 point)

selecting the largest 20 fern house plants to run the experiment on

assigning a number to each plant and using a random number generator to select the sample

selecting the first 20 fern house plants closest to the door of the plant nursery

choosing the 20 most beautiful fern house plants to run the experiment on

Answer 1

"assigning a number to each plant and using a random number generator to select the sample"

This is least biased because it gives every plant an equal chance of being chosen; the other choices introduce systematic selection bias (size, location, or appearance).