Question

Evaluate the expression.

Answer 1

C

Explanation:

at least two have to be in the same place (i think), and that’s the only one that does that

Answer 2

55/56 ≈ 0.982143

Explanation:

nPk = n!/(n-k)!

Your expression is ...

1 - (6·5·4·3)/(8·7·6·5·4·3) = 1 - 1/(8·7) = 1 - 1/56 = 55/56 ≈ 0.982143