Find the probability that a randomly chosen client requested a haircut given they requested a permanent. P\left(\text{haircut }| \text{ permanent}\right)=P(haircut ∣ permanent)=P, left parenthesis, start text, h, a, i, r, c, u, t, space, end text, vertical bar, start text, space, p, e, r, m, a, n, e, n, t, end text, right parenthesis, equals