4. during the course of a semester, 10 students in mr. smith’s class took three exams. use microsoft® excel® to compute all the descriptive statistics for the following set of three test scores over the course of a semester. which test had the highest average score? which test had the smallest amount of variability? how would you interpret the differences between exams, and note the range, means, and standard deviations over time?

Me! i'm really confused the isosceles trapezoids, abcd and efgh, are similar quadrilaterals. the scale factor between the trapezoids is 2: 3, line gh = 6 centimeters, line ad = 8 centimeters, and line ab is three times the length of line dc . use complete sentences to answer the following prompts and include all of your calculations in your final answer. a. write a similarity statement for each of the four pair of corresponding sides. b. write a congruence statement for each of the four pair of corresponding angles. c. determine the perimeter for each of the isosceles trapezoids.