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The arithmetic mean of $^{n} C_{0},^{n} C_{1}, \dots,^{n} C_{n},$ is

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2nn

2n−1n

2n+1n

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Correct option is B

Clearly, Required mean = nC0+nC1+…+nCnn=2nn

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Variate x	1	2	3	4	5
Frequency f of x	4	5	y	1	2

The arithmetic mean of nC0,nC1,…,nCn, is

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The arithmetic mean of $^{n} C_{0},^{n} C_{1}, \dots,^{n} C_{n},$ is