Read the information and answer questions 13-15. A scientist predicted that fertilizer A would cause a plant to grow taller than fertilizer B. An experiment
was done to test how the two different fertilizers would affect plant growth
over a four week period. One plant received fertilizer A and another plant
received fertilizer B. Both plants were the same type. Observe the results in
the graph below.
13. Which of the following indicates how reliable the experimental results
were?
1 point