Measurement Errors with Percentages

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%

Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds.  Find the percent error.  

• 15%
• 20%
• 25%
• 30%

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%

Find the percent error. You estimate that you sent 135 texts last week but when you get the bill it was actually 108. 

• (135 - 108)/135 = 20%
• (135 - 108)/108 = 25%
• (108 - 135)/135 = -20%
• (108 - 135)/108 = -25%

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%