In a mathematics test given to 15 students, the following marks (out of 100) are recorded: 41, 39, 48, 52, 46, 62, 54, 40, 96, 52, 98, 40, 42, 52, 60 Find the mean, median and mode of this data.

In a diagonstic test in Mathematics given to students, the following marks are recorded: 46,52,48,11,41,62,54,53,96,40,98,44 which average will be a good representative of the above data and why?

The weights (in kg.) of 15 students of a class are: 38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38, 47 Find the mode and median of this data.

The scores in mathematics test (out of 25) of 15 students is as follows: 19, 25, 23, 20, 9, 20, 15, 10, 5, 16, 25, 20, 24, 12, 20 Find the mode and median of this data. Are they same?

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: Mean makrs obtained by the group.

The final makrs in Mathematics of 30 students are as follows {:(53,61,48,60,78,68,55,100,67,90),(75,88,77,37,84,58,60,48,62,56),(44,58,52,98,59,70,38,50,60):} Arrange these marks in the ascending order, 30 to 39 one group, 40 to 49 second group etc.

The final makrs in Mathematics of 30 students are as follows (53,61,48,60,78,68,55,100,67,90) (75,88,77,37,84,58,60,48,62,56) (44,58,52,98,59,70,38,50,60) Which observations between 50 and 60 have not actually appeared?

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.