Description
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A group of five students are asked to separately measure the length of a specific paperclip using a ruler. Choose five sets of measurements to indicate the following, given that the actual length of the paperclip is 3.3 cm.
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imprecise and inaccurate data
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precise but inaccurate data
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precise and accurate data
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Explanation & Answer
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1. Imprecise means that the measurements are not close to each other. Inaccurate data would mean that the measurements are not close to 3.3cm.
Example: 1cm, 5cm, 3cm, 9cm, 15cm
2. Precise means the data are close to each other, but inaccurate means they are not close to the actual value.
Example: 5cm, 5.2cm, 4.8cm, 5.4cm, 5.1cm
3. Measurements are close to each other and close to actual value.
Example: 3.3cm, 3.1cm, 3.4cm, 3.4cm, 3.2cm
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