Teresa estimates that the height of a giraffe in a zoo is 18 feet. In fact, it is 16 feet tall. What is Teresa’s percent error? Use proportional relationships to solve the problem. Show all your work and round your answer to the nearest tenth.(4 points)
make the answer short
To calculate the percent error, use the formula:
percent error = (|estimated value - actual value| / actual value) * 100
Substituting in the given values, we get:
percent error = (|18 - 16| / 16) * 100
percent error = (2 / 16) * 100
percent error = 0.125 * 100
percent error = 12.5
Therefore, Teresa's percent error is 12.5%.