Back to Choose appropriate accuracy — Problem 2 · Task Set 6

Exercises: Choose a Level of Accuracy Appropriate to Limitations on Measurement When Reporting Quantities

Work through each section in order. Show your work where indicated. Remember: the goal is to report the right number of digits, not the most digits.

Grade 9·22 problems·~40 min·Common Core Math - HS Number and Quantity·standard·hsn-q-a-3

Work through problems with immediate feedback

Recall / Warm-Up

Five measurements of a 5.000 cm rod give the values: 5.12, 4.87, 5.23, 4.96, 5.08. The average is 5.05 cm. Which statement correctly classifies these measurements?

Precise and accurate — the average is close to the true value.

Precise but inaccurate — the readings cluster tightly but average above 5.000 cm.

Accurate but imprecise — the readings vary widely but average near the true value.

Neither — the readings are too spread out to classify.