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Covid-19 Vaccinations
45,000,000
40,000,000
No. of doses administered till date 30,000,000
35,000,000
25,000,000
20,000,000
15,000,000
10,000,000
5,000,000
0
Andhra Pradesh West Bengal Assam Bihar Delhi
Indian States
Dose 1 Dose 2
You can easily interpret from the graph that Bihar has administered the maximum no. of Dose1 while West Bengal has
administered the maximum number of Dose2. Using a bar chart has many advantages:
• It is useful for comparing facts
• It provides a graphical representation for quick comparison of quantities in various categories
• It also helps to easily identify relationships.
• Bar charts also show big changes over time.
Pie Chart
A pie chart is a circular chart with the pie divided into many segments or sections. Each division of the pie indicates
the relative size, that is, the contribution of every class or a percent of the total. Pie charts are mostly used to visualise
facts from a small dataset. There should be no greater than seven categories in a pie chart. Zero values can't be displayed
in such diagrams. However, these graphs are hard to interpret and compare facts with another pie chart.
Pie charts are used to examine elements of a whole. They do not display changes over time. For example, pie charts may
be used to suggest the achievement or failure of a product or service, display the time-period is allotted to each subject
in a class, or depict monthly spending on numerous items and services in a household. For example:
Storybooks No. of books read in a month
Fiction 30
Murder Mystery 20
Comic Books 25
Self-help books 10
Data Analysis (Computational Thinking) 247

