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  • I need help with If the true value of aquantity is 5g, which of the following measurements are both precise and accurate?

If the true value of a quantity is 5g, which of the following measurements are both precise and accurate?

  • Option 1)

    4.90g, 4.89g

  • Option 2)

    4.99g, 5.01g

  • Option 3)

    4.84g, 4.86g

  • Option 4)

    5.03g, 5.05g

 

Answers (1)

best_answer

As we learnt in

Precision & Accuracy -

Precision is the closeness of various measurements for the same quantity

- wherein

True value of a quantity is 5g. A student measures it twice and gets 4.95g and 4.94g.

 

 

4.99g & 5.01g are accurate because they are the closest to the true value. They are precise because they are close to each other.

 


Option 1)

4.90g, 4.89g

Incorrect

Option 2)

4.99g, 5.01g

Correct

Option 3)

4.84g, 4.86g

Incorrect

Option 4)

5.03g, 5.05g

Incorrect

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Plabita

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