The weights of 20 students in a class are given below.

The interquartile range of the above frequency distribution is `"______"`.

The weights of 20 students in a class are given below. Find the median of the above frequency distribution .

Find the mean weight of 20 students in your class.

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

The marks scored by 40 students in a Mathematics test are given below: Prepare the frequency distribution with classes 0-4, 5-9.....

The distribution of weights of 35 students is shown below: Find the median of the above data.

Let us now consider the following frequency distribution table which gives the weights of 38 students of a class : Convert the classes of above frequency distribution to continuous classes to include two new students weighing 35.5 kg and 40.5 kg.

The marks obtained by 30 students in a class assessment of 5 subjects is given below : Calculate the mean, median and mode of the above distribution.

Marks obtained by 100 students of a class are given below. Find out range and coefficient of range of the marks.

A commulative frequency distributions if given below. Convert this into a frequency distribution table