There are 44 children in class 8B. The list show how far they come from, in kilometres.

Make a frequency table and answer these questions:

How many children are from exactly 1 kilometre away?

First let us understand what frequency table is and why it is made.

The table that is constructed based on the data values with its corresponding frequency is termed as frequency table. Frequency of a data is nothing but the number of times the data value occurs.

We make frequency table for ease of observation.

Let us try making frequency table using the values given in the question…

First, look at what is already given in the question. That is, the distance (in km) from where they come.

Now,

Note that, after making frequency table we can easily answer the questions that follows:

(i). To find: students who are exactly 1 km away from school.

Look at the first column ‘Distance’ of the table and locate 1.

Now, you need to note the value in the adjacent column, here it is 3.

⇒ 3 students are exactly 1 km away from school.

Thus, answer is 3.