Class - boys and girls

In the class are 60% boys and 40% girls. Long hair has 10% boys and 80% girls.

a) What is the probability that a randomly chosen person has long hair?
b) The selected person has long hair. What is the probability that it is a girl?

Your answer:

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You need to know the following knowledge to solve this word math problem:

combinatorics

probability

algebra

sets

basic operations and concepts

percentages

Grade of the word problem

high school

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