Question

Jocelyn estimates that a piece of wood measures 5.5cm. If it actually measures 5.62 cm what is the percent error of Jocelyn’s estimate

Answer 1

There was 2.14% error in Jocelyn's calculations.

Step-by-step explanation:

Given,

Estimated value = Approx value = 5.50 cm

Actual measure = Exact value = 5.62 cm

Percent error = $\frac{|approx-exact|}{exact}*100$

Percent error = $\frac{|5.50-5.62|}{5.62}*100 = \frac{|-0.12|}{5.62}*100$

Percent error = $\frac{0.12}{5.62}*100=\frac{12}{5.62}$

Percent error = 2.135%

Rounding off to nearest hundredth;

Percent error = 2.14%

There was 2.14% error in Jocelyn's calculations.

Keywords: error, percentage

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