Question
A student repeated a respiration experiment, measuring the volume of carbon dioxide produced each minute. The line on the graph rises steadily, but one point lies clearly off the straight line. The plotted values were:
Time / min : 1, 2, 3, 4, 5
Volume / cm³ : 4, 8, 12, 25, 20
[1 mark]
Calculation
Type your answer
Include the unit where there is one (e.g. a magnification ×100, or a rate in cm³/min).
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