Mathematics
11.02.2022 02:12
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El promedio trimestral de Víctor en Matemática es 5,5. Durante el trimestre tuvo
El promedio trimestral de Víctor en Matemática es 5,5. Durante el trimestre tuvo 4 calificaciones en esta asignatura: dos notas 6,0, una nota 4,8 y otra que no recuerda. ¿cuál es la nota que Víctor no recuerda?
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lauren21bunch
4,6(79 marks)
La nota que Víctor no recuerda es 5.2
Step-by-step explanation:
La media es el valor promedio de un conjunto de datos numéricos y es también llamada promedio o media aritmética.
Su cálculo se obtiene al sumar todos los datos disponibles y dividir el resultado por el número total de esos datos:
donde N el número total de observaciones.
En este caso:
Siendo:
Promedio= 5.5x₁=6x₂=6x₃=4.8x₄=?y reemplazando:
Se obtiene:
5.5*4=6+6+4.8 +x₄
22=6+6+4.8 +x₄
22-6-6-4.8=x₄
x₄=5.2
La nota que Víctor no recuerda es 5.2
Ashtree519
4,5(68 marks)
6 and 8
hope this helps! :)
hope this helps! :)
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