SOLUTION: there are 6 girls and 4 boys in a class.2 pupils are picked at random.what is the probability that at least one is a girl?
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Question 1153799: there are 6 girls and 4 boys in a class.2 pupils are picked at random.what is the probability that at least one is a girl? Answer by ikleyn(52781) (Show Source):
The probability under the question is the COMPLEMENT
to the probability to have two boys in this selection
P(at least one is a girl) = 1 - P(two boys) = 1 - = 0.8666... ANSWER
