Which one of the following expressions does NOT represent exclusive NOR of $$x$$ and $$y?$$

In the following truth table $$V=1$$ if and only if the input is valid.

What function does the truth table represent?

Suppose p is the number of cars per minute passing through a certain road junction between 5PM and 6PM and p has a poisson distribution with mean 3. What is the probability of observing fewer than 3 cars during any given minute in this interval?

What is the logical translation of the following statement?
"None of my friends are perfect."