A student estimated that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error for her estimate?

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06-11-2019
Mathematics

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A student estimated that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error for her estimate?

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nishantwork777 nishantwork777 · Answer 1 · 2021-11-16T13:34:56+01:00

The percent error for estimate of student = 66.67%

Percent errors is a concept of statistics which is used to quantify the errors.

It is measure of how close the real value is as compared to expected value . It is expressed as a percentage taken on the expected value.

In statistics since the experimental readings are different than the expected /Ideal values so the percentage errors define the magnitude of closeness of Expected and Real or Actual Values.

Percentage Error = ( Actual Value - Expected Value ) / (Expected Value )

Expected time to complete the book report = 3 hours

Actual time to complete the book = 5 hours

Percentage Error = ( Actual time - Expected time ) / (Expected time )

Percentage error = (5-3)/3 [tex]\times[/tex] 100 % = 66.67%

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