Consider X follows uniform distribution with A =-5 and B=7. Calculate P(−2.5≤X≤2.5) 𝑃 ( − 2.5 ≤ 𝑋 ≤ 2.5 ) a. 0.56 b. 0.24 c. 0.42 d. 0.30
Question
Consider X follows uniform distribution with A =-5 and B=7. Calculate P(−2.5≤X≤2.5) 𝑃 ( − 2.5 ≤ 𝑋 ≤ 2.5 )
a. 0.56
b. 0.24
c. 0.42
d. 0.30
Solution
Para resolver este problema, sigamos los siguientes pasos:
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Identificar los parámetros de la distribución uniforme:
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Recordar la fórmula de la función de densidad de probabilidad (f.d.p) para una distribución uniforme:
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Calcular la longitud del intervalo :
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Calcular la probabilidad :
- La longitud del intervalo es:
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Usar la fórmula de la probabilidad para una distribución uniforme:
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Calcular el valor numérico:
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Redondear a dos decimales:
Por lo tanto, la respuesta correcta es:
c. 0.42
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