The marks (out of 100) obtained by you in 6 class test are 99,100,95,60,70,90 find median .

The marks (out of 100) obtained by a group of students in a science test are 85,76,90,85,39,48,56,95,81 and 75. Find the: (i) Highest and the lowest marks obtained by the students.(ii) Range of the marks obtained.(iii) Mean marks obtained by the group.

Consider the marks, out of 100, obtained by 51 students of a class in a test, given in Table 14.9. M a r k s"N u m b e r o f S t u d e n t s"0-10 5 10-20 10 20-30 4 30-40 6 40-50 7 50-60 3 60-70 2 70-80 2 80-90 3 90-100 9Tot a l 51 Draw a freque

The marks (maximum marks 100) obtained by 20 students in a test are given below : Find the mean marks of the 20 students.