Math Problem Statement
As frequências das barras são:
Entre 6 e 7: 2
Entre 7 e 8: 2
Entre 8 e 9: 6
Entre 9 e 10: 12
Entre 10 e 11: 1
Entre 11 e 12: 1
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Weighted Mean
Frequency Distribution
Formulas
Weighted Mean formula: \( \bar{x} = \frac{\sum (value \times frequency)}{\sum \text{frequencies}} \)
Theorems
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Suitable Grade Level
Grades 10-12
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