Classroom

Of the 26 pupils in the classroom, 12 boys and 14 girls, four representatives are picked to the odds of being:
a) all the girls
b) three girls and one boy
c) there will be at least two boys

Your answer:

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

combinatorics

probability
binomial coefficient
k-permutations
permutations
multiplication principle

basic operations and concepts

factorial

Grade of the word problem

high school

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