Regents Review
RR19- Error
Name:________________________
Date:_____________ Algebra:____
Important Info:
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What is the definition of Mathematical Error: ______________________________________
__________________________________________________________________________
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What is Absolute Error:______________________________`_________________________
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What is Relative Error:_______________________________________________________
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What is Percent Error :_______________________________________________________
Answer the following questions based on what you know about error.
1.
Charlie estimates that he weighs 145 lbs. The super accurate scale at the doctor’s office says that he
weighs 148.5 lbs. What is the absolute error for Charlie’s weight. What is the relative error?
3.
Mike thinks that he can run the 100 yard dash in 10 second. When he runs the dash he is clocked at
11.24 seconds. What is the percent error for Mikes run?
5.
Ashley measures her living room to determine how much carpet she has to buy. She measures the
length of the room to be 12.3 feet and the width to be 18.7 feet. If the absolute error for the actual amount of
carpeting needed for the room was 7.49, what is the actual area of the room?
6.
Garret measured his own height as 6 feet and 2 inches.
the relative error and percent error for Garret’s height?
His actual height is 74.7 inches. What is
7. A student determined the density of zinc to be 6.63 g/cm3. The correct value is 7.13 g/cm3. Find the percent
error in her measurement.
8. The actual dimensions of a rectangle are 2.6 cm by 6.9 cm. Andy measures the sides as 2.5 cm by 6.8 cm. In
calculating the area, what is the relative error, to the nearest thousandth?
9. The dimensions of a rectangle are measured to be 12.2 inches by 11.8 inches. The actual dimensions are 12.3 inches by
11.9 inches. What is the relative error, to the nearest ten-thousandth, in calculating the area of the rectangle?
10. Ryan estimates the measurement of the volume of a popcorn container to be 282 cubic inches. The actual volume of
the popcorn container is 289 cubic inches. What is the relative error of Ryan's measurement to the nearest thousandth?