Q12 of 33 Page 14

Draw an ogive by less than method for the following data:

We first prepare the cumulative frequency distribution by less than method as given below:



Now we mark the upper-class limits along x-axis and cumulative frequency along y-axis. Thus, we plot the points (1,4); (2,13); (3,35); (4,63); (5,87); (6,99); (7,107); (8,113); (9,118); (10,120)





More from this chapter

All 33 →
10

Compare the modal ages of two groups of students appearing for an entrance test:

 11

Find the mean, median and mode of the following data:

 13

The monthly profits (in Rs.) of 100 shops are distributed as follows:


Draw the frequency polygon for it.

 14

The following table shows the marks scored by 140 students in an examination of a certain paper:


Calculate the average marks by using all the three methods: direct method, assumed mean deviation and shortcut method.