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.

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

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

Find the mean of the marks obtained by 30 students of class IX of a schoo.

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.

Find the mean of the marks obtained by 30 students of class IX of a school. The marks are

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

Consider the marks obtained (out of 100 marks) by 30 students of Class IX of a school : Represent this data in a frequency distribution table

Consider the following statements in respect of class intervals of grouped frequency distribution: 1. Class intervals need out be mutually exclusive. 2. Class intervals should be exhaustive. 3. Class intervals need not be of equal width. Which of the above statements are correct?