Question

In a ‘tree plantation’ project of a certain school there are 45 students of 'Harit Sena.' The record of trees planted by each student is given below :

3, 5, 7, 6, 4, 3, 5, 4, 3, 5, 4, 7, 5 , 3, 6, 6, 5, 3, 4, 5, 7, 3, 5, 6, 4, 4, 3, 5, 6, 6, 4, 3, 5, 7, 3, 4, 5, 7, 6, 4, 3, 5, 4, 4, 7.

Prepare a frequency distribution table of the data.

Answer 1

The record of trees planted by each student is given below:

3, 5, 7, 6, 4, 3, 5, 4, 3, 5, 4, 7, 5 , 3, 6, 6, 5, 3, 4, 5, 7, 3, 5, 6, 4, 4, 3, 5, 6, 6, 4, 3, 5, 7, 3, 4, 5, 7, 6, 4, 3, 5, 4, 4, 7.

The frequency distribution table of the given data is as follows:

Number of trees planted	Tally marks	Number of students / Frequency
3	$\cancel{\left|\right|\left|\right|}$ $\cancel{\left|\right|\left|\right|}$	10
4	$\cancel{\left|\right|\left|\right|}$ $\cancel{\left|\right|\left|\right|}$ $|$	11
5	$\cancel{\left|\right|\left|\right|}$ $\cancel{\left|\right|\left|\right|}$ $|$	11
6	$\cancel{\left|\right|\left|\right|}$ $|$$|$	7
7	$\cancel{\left|\right|\left|\right|}$ $|$	6
	Total	45