Xavier, Yuri and Zara attend a sports centre for their judo club's practice sessions. The probabilities of them arriving late are, independently, 0.3, 0.4 and 0.2 respectively.
A. Calculate the probability that for a particular practice session: all three arrive late.
i. All three arrived late.
ii. None of the three arrived late.
iii. Only Zara arrived late. ​