Percent Error
What is ALWAYS true of percent error?
It is positive
A measurement was 34.5 m. The actual value is 36.7 m, This is the percent error of the measurement?
What is 5.99% error?
Original price $0.50. New price $0.65. Find the percent change. Is it an increase or decrease?
What is 30% increase
Original weight 180lb New weight 162lb. Find the percent decrease.
What is 10%
Last year monique's rent was $460/mo. This year her rent increased to $506. What is the percent of increase in her rent?
What is 10%
Predicted Value = 62.5 g. Actual Value = 65.2 grams.
What is 4.14% error?
A pipe is 5.5 m. A student guesses it is 5.2 m. What is the percent error?
What is 5.45% error?
Samuel weighs 110lb at the start of the year. Next January, he weighs in at 132lb. What is the percent change of samuels weight from last year to this year? Is it an increase or decrease?
What is 20% increase
The original airfare was $340 . With a discount, they were able to get the airfare for $255. What is the discount?
What is 25%
Olivia is selling bracelets for $82. She marks them up for valentines day by 30%. How much is she selling the bracelets for?
A bottle is labeled to have 34.1 mL of water, but Valeria measures 34.58 mL. What is the percent error?
What is 1.41% error?
Predicted: 12.3 mL Actual: 15.1 mL. Find the percent error.
What is 18.5% error?
Original number 70. New number 98. Find the percent change. Is it an increase or decrease?
What is 40% increase
The original enrollment at a school is 360 students. It decreases by 18 students next year. What is the percent change? Is it an increase or decrease?
What is 5% decrease
Karla earns $1500 on her last paycheck plus 23% commission. How much money does she make in all?
What is $1845
Find the percent error of an estimated value of .156 cal/g and actual value of .185 cal/g.
What is 15.68% error?
Estimated Value: 200 mL Actual Value: 312 mL. Find the percent error.
What is 35.9% error?
Sophia started with $28 in her account. After buying shoes, she was down to $16. What is the percent change? Is it a percent increase or percent decrease?
What is 43% decrease
A jacket costs $80. Jayden gets it for 45% off with a coupon. How much did he pay for the jacket.
What is $44
Miguel orders a pizza for $37.20. He gets a discount of 25% off. Also, he needs to pay 7% sales tax. How much does he pay for the pizza?
What is $29.85
The percent error of an experimental value is 2.5% and the actual temperature of 100 degrees. What is the possible predicted temperature? Give two answers.
What is 97.5 and 102.5 degrees?
Steven estimates his score on his math test. Steven estimate has a 6% error. His actual score on the math test is 89. What could be Steven’s estimate? Give two answers.
What is 94.34% and 83.66%?
Last weekend, there were 84 customers at the bakery. This weekend, there were 80 customers. To the nearest percent, what is the percent change in the number of customers?
What is 5% decrease
Michael receives a discount of $9 on a hoodie that normally costs $60. What percent discount does he receive on the hat?
What is 15%
Anthony buys 2 pencils that each have an original price of $1.30. He uses a coupon for 10% off. How much does Anthony pay for 2 pencils?
What is $2.34