6 The times, in minutes, taken to complete the two parts of a task are normally distributed with means 4.5 and 2.3 respectively and standard deviations 1.1 and 0.7 respectively.
- Find the probability that the total time taken for the task is less than 8.5 minutes.
- Find the probability that the time taken for the first part of the task is more than twice the time taken for the second part.