1. Statistics students participated in an experiment to test their ability to determine when 1 minute (or 60 seconds) has passed. The results are given below in seconds. 52 75 49 62 68.1 30 24 58 49 49 45 75 21 32 53 75 32 50 51 42 41 50 37 72 35.3 71 25 28.2 32 45 75 15 17.4 Fill in the following table (feel free to use your calculator) Mean = Minx = Range = Q1 = Mode = Med = Standard Dev.= Q3 = Variance = Max = 2. Find the mean from the following data set. Cost Frequency f Class f * x Midpoint x $0-$499 3 $500-$999 4 1000-1499 4 1500-1999 12 2000-2499 17 2500-2999 21 3000-3499 13 3500-3999 9 3. In her first semester of college Sarah took five courses. Her final grades, along with the number of credits for each course, were B (2 units), A (4 units), B (1 units), D (3 units), F (3 unit), B (3 units) The grading system assigns quality points to letter grades as follows: A = 4; B = 3; C = 2; D = 1; F = 0. Compute her grade-point average