2. An experimenter decides to take observations x1,x2... until she obtains a value greater than 10. She finds that Xi < 10 for i 1...19 and that X20 > 10. Hence, sampling terminates after 20 observations. If the average of these 20 observations is 6, then the MLE. is again U=6.
3. An experimenter takes observations one at a time. With no particular plan in mind. until either she is forced to stop sampling or she feels that she has gained enough information to make a good estimate of U If for either reason she stops after she has taken 20 observations and if average of the 20 observations is 6, then the MLE the is again=6.