Measures of Central Tendency

Statistics Practice, Mathematics for Elementary Teachers II

Suppose that two fifth-grade classes take a reading test, yielding the following scores. Scores are given in year-month equivalent form.

Class 1: 5.3, 4.9, 5.2, 5.4, 5.6, 5.1, 5.8, 5.3, 4.9, 6.1, 6.2, 5.7, 5.4, 6.9, 4.3, 5.2, 5.6, 5.9, 5.3, 5.8

Class 2: 4.7, 5.0, 5.5, 4.1, 6.8, 5.0, 4.7, 5.6, 4.9, 6.3, 7.8, 3.6, 8.4, 5.4, 4.7, 4.4, 5.6, 3.7, 6.2, 7.5

How did the two classes compare on the reading test?