The Basics (Leaving Cert Mathematics): Quizzes

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Percentages
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8 questions from this quiz

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What is the first step in calculating percentage error?

Derive observed and accurate values

How do you calculate the error value?

Subtract and take absolute value

What is the formula for relative error?

ErrorAccurate Value\frac{Error}{Accurate \space Value}

What do you multiply relative error by to get percentage error?

100100

In the example with 11 cm and 0.80.8 cm, what is the error value?

0.20.2

In the example, what is the relative error when the error is 0.20.2 and accurate value is 0.80.8?

0.250.25

What is the percentage error of taking 11 cm as 0.80.8 cm?

25%25\%

What is the formula for percentage error?

(Relative Error)100(Relative \space Error) \cdot 100

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