Percent Error Problems

The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?

• 16.67%
• 20%
• 2500%
• 80%

The students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?

• 15.79%
• 18.75%
• 2.25%
• 18%

The deer population is estimated to be 17,600 in northern Illinois, but an actual count was 21,300. What is the percent error?

• 21%
• 17.37%
• 17.4%
• 21.02%

Zed went to the store and bought a bag of chips.  He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package.  What was his percent error?

• 35%
• 67%
• 85%
• 92%

Bob estimates that there will be 230 people who attend the concert.  There was an actual total of 300 people who attended.  Find the percent error.  

• 23%
• 33%
• 27%
• 37%

An archaeologist estimated that a fossil was 520 years old. It was actually 500 years old. What was the percent error?

• 4%
• 20%
• 3.8%
• none of these

Griffin was buying a birthday card, he thinks the price is $4.50, but the actual price is $4. What is his percent of error?

• 50%
• 0.5%
• 12.5%
• 0.125%

Sam thinks the cost of the book is $50, but actually it's $56. What is Sam's percent of error?

• 10.7%
• 6%
• 12%
• 89%

Brittany wants an umbrella for $60. When she checks out, it costs $50. What is her % of error?

• 10%
• 20%
• 17%
• 8%

Lindsey believes the cost to rent a scooter is $100, but actually it's $150. What is Lindsey's % error?

• 50%
• 33%
• 67%
• 150%