Math Problem Statement
Fifteen students took a statistics pre-test and post-test. The results are below (a score of 28 is considered a perfect score). Round your answers to the nearest tenth, if necessary.
Student Pre-Test Post-Test 1 9 22 2 11 28 3 9 18 4 4 24 5 10 25 6 11 16 7 9 19 8 9 20 9 7 18 10 8 14 11 5 16 12 15 26 13 12 21 14 0 14 15 9 13
(a) Find the mean pre-test score.
(b) Find the median pre-test score.
(c) Find the mean post-test score.
(d) Find the median post-test score.
Solution
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Math Problem Analysis
Mathematical Concepts
Mean
Median
Basic Statistics
Descriptive Statistics
Formulas
Mean formula: (Sum of all data points) / (Number of data points)
Median: Middle value in an ordered data set
Theorems
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Suitable Grade Level
Grades 9-12