The percentage of marks obtained by students of a class in mathematics are: 64, 36, 47, 23, 0, 19, 81, 93, 72, 35, 3, 1. Find their mean.

The marks obtained by 12 students of a class in a test are 36, 27, 5, 19, 34, 23, 37, 23, 16, 23, 20, 38. Find mode.

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

What is the modal shoe-size? Since the sale of size 8 is maximum, so the modal shoe-size is 8. The marks obtained by 11 students of a class in a test are given below 23, 2, 15, 38, 21, 19, 23, 23, 26, 34, 23. Find the modal marks

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 of class IX in mathematics are given below: 81, 56, 68, 79, 85, 13, 29, 68, 54, 73, 47, 35, 72, 64, 95, 44, 50, 77, 64, 35, 79, 52, 45, 54, 70, 83, 62, 64, 72, 92, 84, 76, 63, 43, 54, 38, 73, 68, 52, 54. Prepare a frequency distribution with class size of 10 marks.

The marks obtained by 12 students in an examination (out of 50) are given below: 18, 35, 2, 27, 40, 0, 21, 33, 27, 8, 36, 23 Find the mean marks.

The marks obtained by 15 students in an examination are given below : 40, 20, 24, 19,20, 35, 12, 48, 29, 40, 45, 48, 42, 23, 35. Find the average mark of the students.

The marks of 15 students (out of 50) in an examination are 20, 22, 26, 31, 40, 19, 17, 19, 25, 29, 23, 17, 24, 21, 35 Find the median marks