D) what is the midpoint of the last class interval? E) how many student scored between 15 but no more than 20? F) what percent of student scored above 40? G) what percent of student scored no more than 30?H) is it possible to determine individual student grades from his histogram?

Apple Bing Google Yahoo Vendor ATE Sheridan Learning a... im Assignment Vretta Tory Lanez - Don't Walk Away.Just Trus. Question 9 of 14 The histogram below summarizes the grades (out of 50) of all students who wrote a midterm exam. 45 39 40 35 30 30 24 25 21 21 Number of Students 20 12 10 3 0 25 30 35 40 45 50 55 10 15 20 Grade a. How many class intervals were used in the histogram? b. How many students wrote midterm exam? 0 c. What is the modal class