Answer
Let Navy Blue = N and Black B
So the sample points will be:
NNBB, NBNB, NBBN, BNBN, BNNB, BBNN
For correct pairing pairs should be: NNBB, BBNN
So P(Correct combination) = 2/6 = 0.333
And P(Incorrect Combination) = 4/6 = 0.667
So the husband is wrong
Work Step by Step
As given in answer