A student measures the diameter of a metal disc using a digital caliper. The digital caliper gives readings to the nearest 0.01 mm.
The student measures the diameter of the disc eight times. Her readings are:
Identify the anomalous reading.
Calculate the average diameter of the disc.
The student wants to find the thickness of a single metal disc. She takes ten similar metal discs, stacks them together, measures their total thickness, and divides this value by 10. State whether you agree with this method and explain why.
The student wants to find the density of the metal disc. She uses her values for the average diameter and thickness of the disc to calculate its volume. Describe what else she must do to obtain a value for the density of the metal disc.
