What is cumulative frequency of marks less than 15

From following table, what is the cumulative frequency of less than type for the class 30-40 ?

From following table, what is the cumulative frequency of less than type for the class 30- 40?

From following table, what is the cumulative frequency of less than type for the class 30-40 ?

Given that the cumulative frequencies of less than type and more than type corresponding to a class interval are 320 and 323 respectively, when the total frequency is 500, find the percentage of the class-interval.

The data is given for 62 student a in a cetain class, regarding their mathematis marks out of 100. Take the classes 0-10 , 10-20 ,… and prepare frequny distribution table and cumulative frequency table more than or equal to type. What i the cumulative frequency more than or equal to type of the class 0-10 ?

Median OF grouped data || Cumulative frequency distribution table || Different types OF cumulative frequency table less than type and more than or equal to type || Median=L+(n/2-COF/F)h

Following distribution gives cumulative frequencies of 'more than type': Change the above data to a continuous grouped frequency distribution.

Following distribution gives cumulative frequencies of 'more than type': Change the above data to a continuous grouped frequency distribution.

Graph of Cumulative Frequency