The probability that everyone in the group is a boy is 5/9.
Total students = 9
Number of boys = 5
Number of girls = 4
Probability is the measure of the likelihood of an occurrence.
We know P(event) = Favorable outcomes/ Total outcomes
P( all boys) = Number of boys / Total students
P( all boys) =5/9
So, the probability that everyone in the group is a boy =5/9
Hence, the probability that everyone in the group is a boy is 5/9.
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