An experiment to investigate the influence of music on plant growth is set up according to the
design shown in the table. Each plant group contains 20 plants.
Plant group
1
2
3
4
Music type
Classical
Jazz
Rock
Environment
Choose 1 answer:
Bright windowsill
Shady corner
Dark closet
No music Sunny outdoor space
Time music played (hrs/day)
2
Which statement explains how the experiment exhibits bias?
2
2
N/A