The distribution below gives the weights of 30 students of a class. Find the median weight of the students.

In , you were asked to prepare a frequency distribution table regarding the blood groups of 30 students of a class. Use this table to determine the probability that a student of this class, selected at random, has blood group AB.

Find the median of the following distribution.

Give distribution: The sum of the lower limits of the median class the modal class is

Given below is a cumulative frequency distribution showing the marks secured by 50 students of a class: Form the frequency distribution table for the above data

The students of Class VIII of a school donated '2401 in all,for Prime Minister's National Relief Fund.Each student donated as many rupees as the number of students in the class.Find the number of students in the class.

A class teacher has the following absentee record of 40 students of a class for the whole term. Find the mean number of days a student was absent.

On the annual day of school , age-wise participation of students is given in the following distribution table. Find the median of students.:

Given below is the distribution of weekly pocket money received by students of a class. Calculate the pocket money that is received by most of the students.

The following table gives the distribution of the life time of 400 neon lamps : Find the median life time of a lamp

The following distribution shows the marks scored by 140 students in an examination. Calculate the mode of the distribution :