1) When a measurement is repeatable and consistent it is said to have… a) High accuracy b) High precision c) High accuracy & High precision 2) The accepted value is 18.36. Which correctly describes the students’ experimental data? Trial 1: 18.47, Trial 2: 17.98, and Trial 3: 18.26 a) Precise but not accurate b) Accurate but not precise c) Both accurate and precise 3) Precision pertains to all of the following except a) Closeness of the measurements to the right value b) Closeness of the measurements to each other c) Consistency of the measurement 4) The accepted value is 14.62. Which correctly describes the students’ experimental data? Trial 1: 11.83, Trial 2: 12.01, and Trial 3: 11.95 a) Precise but not accurate b) Accurate but not precise c) Both accurate and precise 5) Describe the accuracy and precision of the image a) Not accurate and not precise b) Accurate and not precise c) Not accurate and precise 6) This bullseye demonstrates… a) Not accurate and not precise b) Accurate and not precise c) Not accurate and precise 7) Clyden estimates the weight of his dog to be 30 pounds. The actual weight of the cat was 35 pounds. Find the percent error. a) 13.10% b) 14.29% c) 16.67% 8) Bianca measured length during a science experiment, she got 14 cm. But the actual measurement was 16.5 cm. What was the percent error? a) 15.15% b) 16% c) 16.5% 9) Group 4 measured the height of plant that they grow to be 8 cm. But the actual height is 7.5 cm. Find the percent error. a) 4.2% b) 5.67% c) 6.67% 10) Naomi measures the time it takes for a marble to fall, her time recorded is 3 secs. The actual time is 2.8 secs. What was the percent error? a) 4.14% b) 5.14% c) 7.14%

Accuracy and Precision

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