Find the standard deviation for the given probability distribution.xp(X)x.P(X)x2.P(X)00.21 10.08 20.08 30.36 40.27
Question
Find the standard deviation for the given probability distribution.xp(X)x.P(X)x2.P(X)00.21 10.08 20.08 30.36 40.27
Solution
Para encontrar la desviación estándar de la distribución de probabilidad dada, sigue estos pasos:
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Calcular la media (μ): La media se calcula sumando los productos de cada valor de y su probabilidad .
Sustituyendo los valores:
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Calcular la varianza (σ²): La varianza se calcula sumando los productos del cuadrado de la diferencia entre cada valor de y la media , y su probabilidad .
Sustituyendo los valores:
Calculando cada término:
[ (1 - 2.4)^2 = 1.96 \quad \text
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