Evaluating Data: Precision, Accuracy & Error


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question 1 of 3

You measure the length of a fish 6 times. Each time you find it to be 125 cm long. In reality, the fish is actually 135 cm long. Which of the following statements is true?

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1. Your scale incorrectly measures the weight of your chemical by 5 grams each time. Which of the following statements is true about your data?

2. Drift is which kind of error?

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About This Quiz & Worksheet

This quiz and worksheet will assess your ability to interpret scientific data. You'll be quizzed on types of errors you may encounter in data measuring and how to evaluate sample data.

Quiz & Worksheet Goals

Use these assessment tools to gauge your understanding of:

  • Qualities of trustworthy data
  • Random error
  • What drift is

Skills Practiced

  • Making connections - use understanding of the concept of data evaluation in the context of various experiments
  • Critical thinking - apply relevant concepts to examine information about data measurement in a different light
  • Problem solving - use acquired knowledge to solve data evaluation practice problems
  • Information recall - access the knowledge you've gained regarding types of data measurement errors

Additional Learning

To learn more about evaluating data, check out the corresponding lesson, Evaluating Data: Precision, Accuracy & Error. To aid in your understanding, you might refer to the following objectives as you review the lesson:

  • Understand the purpose of data evaluation
  • Explain what replication can tell us in terms of data measurement
  • Describe data that has repeated measurements of the same value
  • Identify the quality of data measurements that are close to the true value
  • Define human error
  • Explore types of potential errors in data measurement