UNIT: MEASUREMENT

ACT-Based Math: Data Analysis and Measurement Variability Answer Key

Applied Math Scenario:

A group of students measures the length of a pencil using a ruler. Their measurements are 15.2 cm, 15.4 cm, and 15.1 cm. What is the mean length of the pencil?

15.1 cm

15.23 cm

15.3 cm

15.4 cm

Correct Answer: B (Mean = (15.2 + 15.4 + 15.1) ÷ 3 = 15.23 cm.)