Question

The class marks of a frequency distribution are given as 15 , 20 , 25 , 30 , 35. Write

the class interval corresponding to the class mark 25.​

Answer 1

Answer:

class marks of a frequency distribution are given as follows 15,20, 25,……….. The class corresponding to the class mark 20 is. Since, the difference between mid values is 5. So, the corresponding class to the class mark 20 must have difference 5.