The table below shows number of students of students of a college corresponding to different range of marks in Statistics. Present the information in the form of a histogram.

Following table shows number of students of a college corresponding to different range of marks in Statistics.Make a frequency polygon.

The data below shows the number of students in class A having secured different marks. What is the mean marks of class A?

Following information relates to the marks secured by 50 students in economics. Present the information in the form of a table.

The data below shows the number of students in class A and B having secured different marks. What is the combined mean of A and B?

The table given below shows the number of students enrolled in different courses of different colleges. What is the difference in the total number of students enrolled in colleges C3 and C4?

The table given below shows the number of students who were absent and percentage of students who were present in the given two examinations from five different schools. The table shows the percentage of students who were present in the Biology and Physics examination respectively. If the number of students who were present in the Physics examination from school A is 250% of the difference of the number of the students who were present in Physics and Biology examination, from school K, then what is the ratio of the number of students who were present from school L to number of students who were present in Physics examination from school A?

The table given below shows the number of students who were absent and percentage of students who were present in the given two examinations from five different schools. The table also shows the percentage of students who were present in the Biology and Physics examination respectively. If the number of students who were present in the Physics examination from school A is 250% of the difference of the number of the students who were present in Physics and bilogy examination, from school K, then what is the ratio of the number of students who were present from school L to number of students who were present in Physics examination from school A?