In a class of 15 students, 4 students failed and those who passed had marks 38, 45, 63, 35, 81, 99, 78, 57, 92, 39, 48. Find the median marks of the class.

The marks (out of 50) of 10 students in a class are : 40, 34, 37, 50, 47, 42, 31, 46, 36, 43 Find the median marks.

The marks obtained (out of 100) by 12 students in an examination are 74, 96, 87, 65, 99, 82, 76, 92, 66, 75, 85, 90 Find the median marks.

A student secured the following marks in seven subjects 50, 53, 61, 49, 45, 63, 48. Find the median score.

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 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 of 10 students of a class in an examination arranged in ascending order are as follows : 13, 35, 43, 46, x, x + 4, 55, 61, 71, 80 If the median marks is 48, find the value of x. Hence find the mode of the given data.

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(i) Find the mode and median of this data.(ii) Is there more than one mode?

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

The weights (in kilogram) of 15 students are as follows : 31, 35, 27, 29, 32, 43, 37, 41, 34, 28, 36, 44, 45, 42, 30 Find the median. If the weight 44 kg is replaced by 46 kg and 27 kg by 25 kg, find the new 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.