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A population with a mean of µ = 6 has Σ X = 42. How many scores are in the population?​Group of answer choices​N=42​N = 42/6 = 7​N = 6*42 = 252​N = 6/42 = 1/7

Question

A population with a mean of µ = 6 has Σ X = 42. How many scores are in the population?​Group of answer choices​N=42​N = 42/6 = 7​N = 6*42 = 252​N = 6/42 = 1/7

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Solution

Para resolver esta pregunta, necesitamos usar la fórmula de la media (µ) de una población, que es:

μ=ΣXN \mu = \frac{\Sigma X}{N}

Donde:

  • μ \mu es la media de la población.
  • ΣX \Sigma X es la suma de todos los valores en la población.
  • N N es el número de puntuaciones en la población.

Nos han dado los siguientes valores:

  • μ=6 \mu = 6
  • ΣX=42 \Sigma X = 42

Queremos encontrar N N . Reorganizamos la fórmula para resolver N N :

N=ΣXμ N = \frac{\Sigma X}{\mu}

Sustituimos los valores dados:

N=426 N = \frac{42}{6}

N=7 N = 7

Por lo tanto, la respuesta correcta es:

N=42/6=7 N = 42/6 = 7

This problem has been solved

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