Trade statistics show that around 70% of China's steel imports come from Australia. If 10 shipping cargos arrive in Hong Kong independently, determine, in Q1 - 3, the probability that:

Q1 Two of these come from Australia (2 marks)

Q2 Between 8 and 9 (both inclusive) of these cargos come from Australia. (2 marks)

Q3 More than 7 of these cargos come from Australia. (2 marks)