Task instructions
Solve efficiently and select the best answer. Show your working in the practice workspace.
Which set has the greater spread: {5,5,5} or {1,5,9}?
A. {1,5,9}
B. {5,5,5}
C. They are equal
D. Cannot be determined
Practice workspace
Write notes or your response
02:00
Reveal answer key / expected response
A — {1,5,9}
Suggested approach
Translate the statement into mathematical form; compute; check units and reasonableness.
Official-style scoring criteria
Correct result and sound quantitative reasoning.