Jordan wanted to know which fertilizer was best to use on his garden. He used Brand X on his corn and Brand Z on his cabbages. The cabbages grew better than the corn, so he concluded that Brand Z was the better brand. Was this a correct scientific conclusion?
Yes; because he had only one variable in his
experiment-the brand of fertilizer.
No; he should have tested only one brand and used no
fertilizer on the other crop
No; he should have tested each brand on the same type
of plant.
No; he should have tested one brand one
summer and the other brand the following summer.