Teresa estimates that the height of the giraffe at the zoo is 18 feet in fact it is 16 feet tall. What is Teresa‘s percent error used proportional relationship to solve the problem. Be sure to show all your work, provide your answer as a percentage in round your answer to the nearest tenth
To find the percent error, we use the formula:
Percent Error = (|Estimated Value - Actual Value| / Actual Value) * 100
Given:
Estimated Value = 18 feet
Actual Value = 16 feet
Plugging in the values, we get:
Percent Error = (|18 - 16| / 16) * 100
Simplifying, we get:
Percent Error = (2 / 16) * 100
Percent Error = 0.125 * 100
Percent Error = 12.5
Therefore, Teresa's percent error is 12.5%.