A list is prepared which shows the marks obtained by $20$ students. Let's write down these marks by giving tally marks and prepare a frequency distribution chart.

$9, 8, 6, 10, 2, 1, 15, 12, 8, 6, 9, 2, 8, 5, 9, 10, 5, 9, 10, 8$.

In Jahanara's school classes were held for only $22$ days this month. The number of students attending classes on these $22$ days are given below: 

$30, 28, 34, 29, 25, 30, 28, 26, 29, 30, 22, 25, 26, 29, 30, 31, 21, 27, 25, 13, 32, 28$

Using the above raw data, let's prepare a frequency distribution chart with tally marks.

Given below is the data showing which fruits $20$ friends like to have. Lets draw a bar graph based on this data.

Below is the weight $\left(\mathrm{kg}\right)$ of $30$ students of class $\mathrm{VI}$ of Soham's school.

$32, 32, 37, 34, 37, 35, 35, 36, 37, 39, 40, 36, 37, 36, 33, 31, 32, 36, 37, 38, 40, 34, 36, 34, 35, 33, 34, 35, 32, 35$

Using the above raw data, let's prepare a frequency distribution chart.

From a survey conducted on $150$ students in a school, it is seen how many students like to study what subject. The raw data from the survey is given below:

Taking $1 \mathrm{unit}=5$ students, let's prepare a bar diagram.

Ram Da has a shop selling bags in Haldar Para. Ram Da himself makes the bags. Here a list of bags sold from the shop this week.

Draw a bar diagram.

A bar diagram shows the numbers of students appearing at the Madhaymik Examination each year during the last $5$ years.

Answer the below question by using the bar diagram.

Determine in which year the maximum number of students have appeared for the exam?

A bar diagram shows the numbers of students appearing at the Madhymik Examination each year during the last $5$ years.

Answer the below question by using the bar diagram.

In which year the least number of students have sat for the exam?

A bar diagram shows the numbers of students appearing at the Madhymik Examination each year during the last $5$ years.

Answer the below question by using the bar diagram.

How many more students have appeared for the examination in $2011$ than $2010$?