A brand head manager found that 73% of the customers are teenagers. Majority of them prefer ewallet payment. The probability that a customer prefers ewallet payment given that the customer is a teenager is 0.85. If a customer is not a teenager, the probability that he/she prefers cwallet payment is 0.23. (iv) Are the events "customer is a teenager' and "customer prefer ewallet payment" independent? Provide your answer with a reason. (2 marks)