You are allowed to take a certain test three times, and your final score will be the maximum of the test scores. your score in test i, where i = 1, 2, 3, takes one of the values from i to 10 with equal probability 1/(11−i), independently of the scores in other tests. what is the pmf of the final score?

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables