One way to reduce bias in an experiment is to
a. ask only girls a question about a school topic
b. take numerical measurements of the results
c. use descriptive phrases as your data
d. make sure that the results come out the way you want them

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.