For each element in a set of size 2n, an unbiased coin is tossed. The 2n coin tosses are independent. An element is chosen if the corresponding coin toss were head. The probability that exactly n elements are chosen is:(A) (2nCn) / (4^n)(B) (2nCn) / (2^n)(C) 1 / (2nCn)(D) 1/2

For each element in a set of size 2n, an unbiased coin is tossed. The

1.	For each element in a set of size 2n, an unbiased coin is tossed. The 2n coin tosses are independent. An element is chosen if the corresponding coin toss were head. The probability that exactly n elements are chosen is:(A) (2nCn) / (4^n)(B) (2nCn) / (2^n)(C) 1 / (2nCn)(D) 1/2
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For each element in a set of size 2n, an unbiased coin is tossed. The 2n coin tosses are independent. An element is chosen if the corresponding coin toss were head. The probability that exactly n elements are chosen is:(A) (2nCn) / (4^n)(B) (2nCn) / (2^n)(C) 1 / (2nCn)(D) 1/2

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