(i) What is the size of the class intervals?
(ii) Which class has the highest frequency?
(iii) Which class has the lowest frequency?
(iv) What is the upper limit of the class interval 250-275?
(v) Which two classes have the same frequency?
(i) Class size = [Upper class limit] - [Lower class limit] = 125 - 100 = 25.
(ii) The class 200-225 is having the highest frequency (which is 140).
(iii) The class 300-325 is having the lowest frequency (which is 20).
(iv) The upper limit of the class interval 250-275 is 275.
(v) The classes (150–175) and (225-250) are having the same frequency (which is 55).
Draw an appropriate graph to represent the given information.