Question

The marks scored by 750 students in an examination are given in the form of a frequency distribution table:
Marks
600-640
640-680
680-720
720-760
760-800
800-840
840-880
No. of Students
16
45
156
284
172
59
18

Answer 1

Less Than Cumulative Frequency distribution table & Graph Of Less Than Ogive Is In The Attachment.

From the table : Plot these points (640,16), (680, 61), (720,217), (760,501), (800,673), (840,732), (880,750)  by taking upper class limit over the x-axis and cumulative frequency over the y-axis.

★★ LESS THAN TYPE OGIVE:

It is the graph drawn between upper limits and cumulative frequencies of a distribution. Here, we mark the points with upper limit and x- coordinate and corresponding cumulative frequency as y- coordinate and join them by freehand smooth curve. This type of graph is cumulated upward.

HOPE THIS ANSWER WILL HELP YOU...

Answer 2

Answer:

see the above attachment