In which plane is the probability of finding the py- electron zero ?

The probability of finding the electron in the orbital is

What is the probability of finding electron is called ?

In which of the following pairs is the probability of finding the electron in xy-plane zero for both orbitals ?

The probability of finding the electron in p_(x) orbit is :

In which of the following pairs is the probability of finding the electron in only xy - plane is zero for both orbitals ?

Which numbers indicate the probability of finding the electron in the space around the nucleus?