Luka and Anja each measured the height of their friend three times. Their friend is 59 inches tall. They recorded their measurements as shown. Luka: 59 in., 58, in., 58 in. Anja: 59.3 in., 59.6 in., 58.2 in. Which statement is true? Luka's measurements are more precise and more accurate. Anja's measurements are more precise and more accurate. Luka's measurements are more precise, but Anja's measurements are more accurate. Luka's measurements are more accurate, but Anja's measurements are more precise.

Question

Jacquelyn Hopkins

Mathematics

5 January, 13:23

Luka and Anja each measured the height of their friend three times. Their friend is 59 inches tall. They recorded their measurements as shown. Luka: 59 in., 58, in., 58 in. Anja: 59.3 in., 59.6 in., 58.2 in. Which statement is true? Luka's measurements are more precise and more accurate. Anja's measurements are more precise and more accurate. Luka's measurements are more precise, but Anja's measurements are more accurate. Luka's measurements are more accurate, but Anja's measurements are more precise.

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Answers (1)

Know the Answer?

Regina Bartlett · Answer 1

Accuracy is how close a measured value is to the actual value.

Precision is how close the measured values are to each other.

Accuracy:

Luka: (59 + 58 + 58) / 3 = 58.33

Anja: (59.3 + 59.6 + 58.2) / 3 = 59.03 (closer to 59)

Precision:

Luka : 59 - 58 = 1 (subtract the lowest from the highest result)

Anja: 59.6 - 58.2 = 1.4

Answer:

C) Luka's measurements are more precise, but Anja's measurements are more accurate.