Q. 3

In a certain college, 4% of boys and 1% of girls are taller than 1.75 meters. Furthermore, 60% of the students are girls. If a student is selected at random and is taller than 1.75 meters, what is the probability that the selected student is a girl?

Answer :

Let, T :students taller than 1.75


B : Boys in class


G : Girls in class


We want to find P(G|T), i.e. probability that selected taller is a girl





Conclusion : Therefore, the probability of selected taller student is a girl is


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