Mathematics 9709 · AS & A Level · Sampling and estimation

Sampling and estimation — practice question

From a class made up of $8$ boys and $4$ girls, a random group of $7$ people is selected.
(i)[3]

Find the probability that the group of $7$ contains one particular boy.

(ii)[4]

Find the probability that the group of $7$ contains at least $2$ girls.

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