Data Interpretation (DI) is reading and understanding the given data set. Data can be provided in various formats such as bar, table, line graph, pie chart, etc.
Bar Graph: A bar graph is pictorial representation of two related form of data. You need to read one set of date in relation to the other set of data. A bar graph is based on two axis: X-axis and Y-axis and can be horizontal or vertical. In a horizontal bar graph, Y-axis shows the data categories and X-axis shows the scale. In vertical bar graph, it is vice versa.
Tables: In Tables, the data is presented in the form of rows and columns. The questions based on tables generally requires you to read and interpret the data and find the right answer.
Line Graphs: A line graph is a representation of data/activity over a certain period of time. In this form of data presentation, rise/fall/change is represented on a line over x-axis and Y-axis.
Pie Charts: Data in pie charts are represented circular shaped graphs divided into sectors to represent numerical proportions of the sub-set. Reading a pie chart is often simpler than other form of pictorial representation as it is easier to visually identify which section takes up more space in the pie.
- A good way to solve DI problems is by memorizing Tables (at least up to 20), Squares, Cubes, Square Roots, Percentage and Fraction. - Be good at percentage, averages & ratio proportion, DI won’t pose a big challenge to you. - Understand the nature of data given whether Absolute (meters, kilograms, seconds) or Relative (percentage, ratio, proportion, per million, per square feet). While the former is easy to handle, the latter can be slightly tricky. - Tip: At times, there may not be the exact answer but one has to choose the closest/correct option. Therefore, read the answer options before reading the question. This will save plenty of time.
Related Topics:
Quantitative Aptitude and Numerical Ability For Competitive Examinations
Reasoning For Competitive Exams
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