Back to Quantities — Problem 3 · Task Set 29

HSN.Q Tutor Intake — Units, Quantities, and Accuracy

This short check helps your tutor understand where to start. Answer each question without help. If you're not sure, give your best try — the goal is to find what to work on together, not to grade you.

Grade 9·13 problems·~15 min·Common Core Math - HS Number and Quantity·domain·q

Work through problems with immediate feedback

Concepts

A digital scale is calibrated to read exactly 0 g when empty.
A technician measures a 100.000 g reference mass five times and
records: 102.3 g, 102.4 g, 102.3 g, 102.3 g, 102.4 g.
Which statement correctly describes these measurements?

Accurate and precise — the readings are consistent and close to 100 g.

Precise but not accurate — the readings are consistent with each other but systematically high.

Accurate but not precise — the readings average to 100 g.

Neither accurate nor precise — a spread of 0.1 g shows poor precision.