Respuesta :
The number of different sets to be selected is 3
What is combination?
Combination can be defined as the number of possible ways arrangement with no or little considerations for the order.
The formula for combination is expressed as;
C( n, r)= (n)!/ ( n - r)! r!
Where
- n is the distinct number to select from
- r is the selected number
C( 3, 2)= 3!/(3 - 2)!2!
Find the difference
C(3, 2) = 3!/1!2!
This can be written as;
C(3, 2) = 3× 2 × 1/1 × 2 × 1
Multiply through
C(3, 2) = 6/2
C(3,2) = 3
The number of different sets that could be selected from is 3
Hence, the number of different sets to be selected is 3
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