Artificial Intelligence - Old Questions

9. What is the use of Baye's rule? Consider in a school, the number of boys student is 46% and that of girl student is 54%. Suppose 4% of boys student are over 5 feet tall and 2% of girls student are over 5 feet tall. If  a student is selected at random from among all those over 5 feet tall, what is the probability that the student is girl?[1+5]