Respuesta :
Answer:
4 ways of choosing
Step-by-step explanation:
If you want to choose 3 objects, without replacement, from the 4 objects which are distinct, then permutation i.e then their arrangement doesn't really matter. Only their combination will be considered
That means, order of choosing doesn't matter,
pencil/ eraser/ desk will be same as eraser/ desk/ pencil.
Number of ways of selecting 3 objects out of 4 distinct objects is:
⁴C₃ = [tex]\frac{4 !}{3! \times (4-3)!}[/tex]
⁴C₃ = [tex]\frac{4 \times 3 \times 2 \times 1}{3 \times 2 \times 1}[/tex]
⁴C₃ = 4
So, there are 4 ways of choosing
