If repeated measurements give values close to one another, the number is:

surely precise

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surely accurate

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surely precise and accurate

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all of these are correct

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Solution

The correct option is A surely precise
Precision $=$ Individual value $-$ mean value
If the repeated measurement value is close to one another, the mean value will be close to the individual values. Therefore, their difference i.e. Precision is close to zero. Therefore, they are surely precise.
But the accuracy is the difference between the actual value & the mean value.
As we do not know the actual value, we cannot predict its accuracy.

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