Measurement Estimates

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%

• 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%

During the school fire drill the actual count of students was between 1380 and 1402. What is the most the absolute error could be?

• 22

• -22

• 2782

• 22%

?

• High Accuracy & High Precision

• High Accuracy & Low Precision

• Low Accuracy & High Precision

• Low Accuracy & Low Precision

Estimate
7 5/8 - 2 8/10

• 10

• 4

• 10 1/2

• 4 1/2

Estimate
9 1/2 + 10 1/3 + 20 9/10

• 30

• 30 1/2

• 40 

• 40 1/2

Zac wants to have a flower bed in his backyard. He measures the area of the flower bed to be 10 square feet. The actual measurement of the flower bed is 10.6 square feet. Approximately what is Zac’s percent error?

• 0.6%

• 10%

• 5.7%

• 6%

Mr. Bynum asked students to guess how many jelly beans he had in a mason jar. Cassandra guessed 148. The actual number of jelly beans in Mr. Bynum's mason jar was 162. What is the approximate percent error of Cassandra's guess?

• 91.4%

• 86.4%

• 9.5%

• 8.6%

A student’s calculation was found to have a 35.5% error, and his experimental measurement was 15.6 cm. What are the possible values for the actual measurement?

• 5.538 cm

• 21.138 cm

• 10.062 cm

• 51.1 cm

Nick estimated that 60 people would come to eat, but only 45 attended. Whats the % of error?

• 15%

• 25%

• 33%

• 75%