The histogram summarizes the grades out of 50 of all students who wrote a exam.
a. How many class intervals were used in the histogram?
b. How many students wrote exam?
c. What is the modal class?
(click to select)5 - 1010 - 1515 - 2020 - 2525 - 3030 - 3535 - 4040 - 4545 - 5050 - 55
d. What is the midpoint of the last class interval?
e. How many students scored between above 15 but no more than 20?
f. What percent of students scored above 40? %
g. What percent of students scored no more than 30? %
h. Is it possible to determine individual student grades from this histogram?
(click to select)YesNo