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