contestada

At a high school, the probability that a student takes a science class and a history class is 0.38. The probability that a student takes a science class is 0.78, and the probability that the student takes a history class is 0.60. What is the probability (rounded to the nearest hundredth) that a student takes a history class given that the student is taking a science class?

Respuesta :

LammettHash
By definition of conditional probability,

[tex]\mathbb P(\text{history}\mid\text{science})=\dfrac{\mathbb P(\text{history AND science})}{\mathbb P(\text{science})}=\dfrac{0.38}{0.78}\approx0.49[/tex]

Otras preguntas