4. Replacement times for TV sets are normally distributed with amean of 8.2 years and a standard deviation of 1.1 years. (Changethe final answer to a % and keep 2 decimal places) a)Find the probability that a randomly selected TV set will have areplacement time between 9.5 and 10.5 years. (Include diagram) b)Find the probability that 35 randomly selected TV sets will have amean replacement time less than 8.0 years. (Include diagram)
