Question

Given below are the marks of the students in a less than cumulative frequency distribution table. Write the frequencies of the respective classes. Also write the greater than cumulative frequencies. How many students marks are given in the table? Class interval( marks) 1 - 10 11-20 21-30 31-40 41-50 lcf( no of students) 12 27 54 67 75

Answer 1

Class intervals No. of students Greater than
1-10 12 75
11-20 15(27-12) 63(75-12)
21-30 27(54-27) 48(63-15)
31-40 13(67-54) 21(48-27)
41-50 8(75-67) 8(21-13)