Question

What are the uses of representation of data in daily life

Answer 1

Graphs allow you to visualise data or the behavior of something quickly, bypassing the intimidating mathematics or models that the graph represents. If, as opposed to a simple line graph, a company board were given a list of data points with corresponding profits, losses etc., the conclusions drawn from this data would take longer to derive than simply looking at a line pointing upwards or downwards over time.

A nurse, whose main background is not rooted deeply in maths, may struggle to interpret results of medical data, were there not tools to express it.

Even myself, studying maths in higher education, am still only human. Visualising the behavior of 4(+)-D functions in a 3-D brain, or trying to visualise solutions to such functions, is exceedingly difficult. Graphs help us build a bridge between the abstract and the real, and are indispensible to real life problem solving and analysis.

Answer 2

Graphs are nothing but connected nodes(vertex). So any network related, routing, finding relation, path etc related real life applications use graphs.

Connecting with friends on social media, where each user is a vertex, and when users connect they create an edge.

Using GPS/Google Maps/Yahoo Maps, to find a route based on shortest route.

Google, to search for webpages, where pages on the internet are linked to each other by hyperlinks; each page is a vertex and the link between two pages is an edge.

On eCommerce websites relationship graphs are used to show recommendations.