Ans. In general, combinations are used to determine the number of ways a sample of size n can be drawn from a population of size N. The formula for calculating the number of such combinations is as follows:

nCr

= 10C3

= 120

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Ans. In general, combinations are used to determine the number of ways a sample of size n can be drawn from a population of size N. The formula for calculating the number of such combinations is as follows:

nCr

= 10C3

= 120