BI-2167
Improving experiments
Biology · Secondary 4 · Easy · Improving experiments
In a catalase experiment, a student measures the time taken for a disc to rise but starts the stopwatch a few seconds late each time. What type of error is this, and how will it affect the results?
- Random error; some times higher and some lower
- Systematic error; all times too small
- Systematic error; all times too large
- Random error; no effect on calculated rate
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