8. Using the graphs below of two different groups of test takers. Estimate which class has the highest mean Exam score. (Hint: it is not necessary to calculate the mean scores to answer this question.). lee a reason. Ms. K's Exam Scores Ms. Y's Exam Scores tW- i'I "1 9n RH km qg ill 4n hi! fit? 1:: Hit 'III 1.30 Percentage Percentage a. Mrs X's Exam scores have the higher mean because the class with the tallest bar in her graph is in a higher grade class 85-90 than Mrs. Y's tallest bar in the grade class 50-55. b. Mrs. Y's Exam scores have the higher mean because the scores are more spread out. 0. Mrs. X's Exam scores have the higher mean because there are fewer scores in the distribution. d. Mrs. Y's Exam scores have the higher mean because her scores go up to 100, high than Mrs. X's highest score. 9. Determine the median of the following data set given in the form of a stemplot. Stern Leaf a. 62 D 5. b. 63 c. 64 1 2 d. 56 2 J 3 2-1 4 08 5 06 5:224453 ? 02255532