Let s={1,2,3,4,5,6}.
how many subsets of cardinality 4 contain at least one odd number?

15 subsets of cardinality 4 contain at least one odd number.

Step-by-step explanation:

Here the given set,

S={1,2,3,4,5,6},

Since, a set having cardinality 4 having 4 elements,

The number of odd digits = 3 ( 1, 3, 5 )

And, the number of even digits = 3 ( 2, 4, 6 )

Thus, the total possible arrangement of a set having 4 elements out of which atleast one odd number =

By using ,

Hence, 15 subsets of cardinality 4 contain at least one odd number.

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step-by-step explanation:

answer: the correct answer is -32

step-by-step explanation: