Following are the marks obtained by 25 students in Statistics . Prepare a frequency distribution by taking a class interval of 4 on exclusive basis.

The following are the marks obtained by 30 students of Class XI in Statistics. Prepare a frequency distribution by taking a class interval of 5 on exclusive basis.

For the following raw data prepare a frequency distribution with a class interval of 5 on inclusive basis :

Following are the marks obtained by 20 students in statistics. Find out coefficient of variation of the marks.

The marks obtained by 32 students of a class are given below. Prepare a frequency table with class intervals 31-40, 41-50, ….. etc.

The marks obtained by 32 students of a class are given below. Prepare a frequency table with class intervals 31-40, 41-50, ….. etc.

Following are the marks obtained by 30 students in a examination Taking class intervals 0-10, 10-20,….. 40-50 construct a frequency table.

Following are the marks obtained by 30 students in a examination Taking class intervals 0-10, 10-20,….. 40-50 construct a frequency table.

The marks scored by 40 students in a Mathematics test are given below: Prepare the frequency distribution with classes 0-4, 5-9.....