Ira enters a competition to guess how many buttons are in a jar. The percent error of Ira's guess is 25%.
Given that:
- the approximate value guessed = 200
- the exact value = 250
The percent error is the difference between the exact value and the approximate value guessed divided by the exact value and then multiplied by 100.
Mathematically;
[tex]\mathbf{Percent \ error = \dfrac{250 - 200}{200} \times 100}[/tex]
[tex]\mathbf{Percent \ error = \dfrac{50}{200} \times 100}[/tex]
Percent error = 25%
In a percentage of 100, Ira guess was off by:
= (100 - 25)%
= 75%
Therefore, we can conclude that the percent error of Ira's guess is 25%.
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