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. Be sure to show all your work, provide your answer as a percentage, and round your answer to the nearest tenth
make the answer short
Teresa's percent error is 12.5%.
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. Be sure to show all your work, provide your answer as a percentage, and round your answer to the nearest tenth.
To calculate the percent error, we can use the formula:
Percent error = (|True value - Estimated value| / True value) * 100
In this case, the true value is 16 feet and the estimated value is 18 feet.
Percent error = (|16 - 18| / 16) * 100
Percent error = (|-2| / 16) * 100
Percent error = (2 / 16) * 100
Percent error = 0.125 * 100
Percent error = 12.5%
Therefore, Teresa's percent error is 12.5%.
To calculate the percent error, use the formula:
Percent Error = |(Actual Value - Estimated Value) / Actual Value| * 100.
In this case, the actual height of the giraffe is 16 feet and Teresa estimated it to be 18 feet. Plugging these values into the formula, we get:
Percent Error = |(16 - 18) / 16| * 100
Percent Error = |-2 / 16| * 100
Percent Error = 0.125 * 100
Percent Error = 12.5%
Therefore, Teresa's percent error in estimating the height of the giraffe is 12.5%.