Percent Error and Interest

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

• 21%

• 15.4%

• 17.4%

• 21.02%

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

• 15.79%

• 18.75%

• 2.25%

• 8.72%

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 200 chips in that package.  What was his percent error?

• 35%

• 75%

• 85%

• 92%

A scientist measures a substance to be 75 grams, but the actual weight of the substance is 100 grams. What is the percent error of the scientist's measurement?

• 33%

• 25%

• 20%

• 25.5%

Amari measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm. What is the percent error of Amari's measurements?

• 4.5%

• .043%

• 4.3%

• 45%

You lend $240 to your friend.  He pays you back $270.  What interest rate did you charge your friend?

• 88%

• 20%

• 12.5%

• 10%

Amari measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm. What is the percent error of Amari's measurement?

• 4.3%

• 0.043%

• 4.5%

• 45%

The student council estimated that they would have 250 people attend the homecoming dance. The number of people who attended was 315. What is the percent of error to the nearest hundredth percent? Type the answer in the blank up to the hundredth place value.

Mathematical Equivalence

ON

The distance around a neighborhood is 6 miles. When Sam clocked it with an odometer, the distance was 5.52 miles.

What is the percent error of the clocking?

• 10%

• 6.5%

• 7%

• 8%