11.1.3.1 - Random Errors
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Practice Questions
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Define random errors.
💡 Hint: Think about what can cause different results in repeated measurements.
What is the difference between accuracy and precision?
💡 Hint: Consider an archery analogy.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of error is characterized by unpredictable variations in measurements?
💡 Hint: This error type prevents exact replication of results.
True or False: Random errors can be completely eliminated.
💡 Hint: Consider the sources of unpredictability.
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Challenge Problems
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You measure the same liquid five times with results: 25.1 mL, 25.3 mL, 25.2 mL, 25.0 mL, and 25.4 mL. Calculate the average and discuss the random error present.
💡 Hint: Use the formula for the mean to find out the average value.
If the standard deviation of your repeated measurements is 0.2 mL for a liquid, explain what this tells you about the random error.
💡 Hint: Consider what standard deviation says about the spread of your data.
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