6. (3pts) Suppose a population of adult trout in a mountain lake has a mean length of 7.1 inches and a standard deviation of 1.9 inches. Assuming that the lengths are normally distributed, what's the probability that a randomly selected trout has a length less than 6.8 inches? 7. (Zpts) Suppose we take a random sample of size a form a population and compute its sample mean. The Central Limit Theorem says that if at least one of two conditions are satised, the distribution of the sample means will be normally distributed. List these two conditions