10 points
Problem 4.12 An electron in a hydrogen atom is in a state with orbital angular momentum quantum number $l = 1$. If the total angular momentum quantum number $j$ is $\frac{3}{2}$, and the z component of total angular momentum is $\frac{1}{2}\hbar$, what is the probability of finding the electron with $m_s = +\frac{1}{2}$?