10 marks. A golfer is practicing putting. The probability that he sinks the first putt is 0. Each time he sinks a putt, the probability that he…

7. 10 marks. A golfer is practicing putting. The probability that he sinks the first putt is 0.4. Each time he sinks a putt, the probability that he sinks the next putt increases by 25%. Each time he misses a putt, the probability that he misses the next putt increases by 20%.