The frequency distribution given below shows the weight of 40 students of a class. Find the median weight of the students.

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

The distribution below gives the weight of 30 students in a class. Find the median weight of students: Weight (in kg): 40-45 45-50 50-55 55-60 60-65 65-70 70-75 No. of students: 2 3 8 6 6 3 2

Following table shows the weights of 12 students: Find the mean weight.

The weight (in kg) of students are given below : Find the median weight of a student.

Find the mean weight of 20 students in your class.

Following is the data showing weights of 40 students in a class . Find its median .

Following frequency distribution gives the weights of 40 students of a class . A student from the class is chosen at random . What is the probability that the weight of the chosen student is (i) at most 60 kg (ii) at least 56 kg (iii) not more than 50 kg ?

Following frequency distribution gives the weights of 38 students of a class : Based on the above information, answer the following questions. Define an event whose probability is 1.