Understanding Percent Error Quiz

What is the formula for percent error?

If the actual value is 50 and the experimental value is 45, what is the percent error?

A student measures the length of a table as 98 cm, but the actual length is 100 cm. What is the percent error?

Which of the following statements about percent error is TRUE?

• Percent error can only be positive.

• Percent error can be negative or positive.

• Percent error is always zero.

• Percent error is always greater than 100.

If the experimental value is 120 and the actual value is 100, what is the percent error?

Which of the following best describes percent error?

• The difference between two values divided by the experimental value, times 100.

• The difference between two values divided by the actual value, times 100.

• The sum of two values divided by the actual value, times 100.

• The product of two values divided by the actual value, times 100.

If the experimental value is less than the actual value, the percent error is:

• Negative

• Zero

• Positive

• Cannot be determined