Math Problem Statement
En la tabla adjunta se muestra la distribución de edades de un grupo de participantes de un club deportivo. ¿Cuál(es) de las siguientes afirmaciones es(son) verdadera(s)? Edad (años) Frecuencia 20 7 21 8 22 5 23 3 24 2 I. La moda es 8. II. La mediana es 22. III. El promedio (o media aritmética) es 21,4 años.
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Measures of Central Tendency
Frequency Distribution
Formulas
Moda: The mode is the value that appears most frequently in a data set.
Mediana: If the number of data points is odd, the median is the middle value; if even, it is the average of the two middle values.
Media Aritmética: \(\text{Media} = \frac{\sum (x_i \cdot f_i)}{\sum f_i}\)
Theorems
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Suitable Grade Level
Grades 9-11
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