A class tested whether cold slows down germination. Tray A was kept in the classroom and tray B in a refrigerator. Each tray had 20 seeds and the test was repeated three times. Seeds germinated in tray A: 18, 16, 20. Seeds germinated in tray B: 6, 4, 5. By how many percentage points is the average germination in tray A higher than in tray B?

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Controlled Variables in Fair Testing, Recording and Interpreting Experimental Data | PadhAiPro

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NumericalControlled Variables in Fair TestingRecording and Interpreting Experimental Data

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