Mark estimates that the distance from his house to his school is 15.5 mi. the actual distance is 14.5 mi. to the nearest tenth of a percent, what is the percent error in mark's estimate?

The percentage error of the estimate is 6.9%

How to calculate the percentage error

The data values are given as:

Actual = 14.5 miles

Estimate = 15.5 miles

The percentage error in the estimate is then calculated as:

So, we have:

Evaluate

Hence, the percentage error of the estimate is 6.9%

Read more about percentage error at:

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The error is 1.0 mile, too large.

Write the ratio 

1.0 mile
= 0.069
14.5 miles

Mark's estimate is 6.9% greater than the actual distance.

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