Of all freshman at a large college, 16% made the dean's list in the current year. as part of a class project, students randomly sample 40 students and check if those students made the list. they repeat this 1,000 times and build a distribution of sample proportions. (a) what is this distribution called? (b) would you expect the shape of this distribution to be symmetric, right skewed, or left skewed? explain your reasoning. (c) calculate the variability of this distribution. (d) what is the formal name of the value you computed in (c)?