Data Interpretation is related to the understanding, organizing as well as interpretation of data to arrive at a meaningful answer. With a piece of information being provided, questions are required to be solved based on the data.
In the case of bank exams, around 10-15 questions are asked in prelims and around 10 to 20 questions are asked in the mains examination. The list of exams includes SBI PO, IBPS PO, IBPS RRB, LIC AAO, SSC CGL, SBI Clerk, IBPS Clerk, IBPS SO etc. Good command over topics of numerical ability is important to solve these types of questions.
Data Interpretation can be one of the most time-consuming topics in the Quantitative Aptitude section of bank examinations. Some of the reasons why data interpretation is not among the favourites of students include the following:
- Questions related to Data interpretation can be confusing and candidates might be confused about the information related to a table or illustration.
- A lack of familiarity related to tables or graphs can result in the candidates skipping the question.
- It requires mastery of multiple topics which includes questions from percentages, averages, ratio and proportion, and mixture & allegation.
Format of Data Interpretation Questions
The questions based on Data Interpretation can be asked in various formats. Some of the formats in which questions can be asked in prelims and mains include the following:
- Bar Graph – In this case, the Information can be presented in the format of bar graph format and questions based on it are required to be answered.
- Pie Chart – A pie chart depicts a circular representation of data. The info can be one or more pie charts in a question.
- Missing Data – The missing data format is where you are required to compute the missing information and then solve the given questions.
- Tabular Form – Data is presented in the form of a table and interpreting the data is required in order to solve the questions.
- Line Chart – A line chart represents data in the form of a line or linear format. Such type of questions is commonly asked in bank exams.
- Caselet DI – A caselet is statement based data. There is no depiction of an image. One needs to read the paragraph thoroughly and then move on to solve the questions
Solving questions based on DI
The following factors should be taken into consideration while solving questions based on data interpretation.
Write down the list of topics which are important to master questions related to DI. The topics include Averages, Percentages, Ratio and Proportion and Mixture & Allegation.
Jot all the important formulas for each of the topics.
Ratio = Comparing values in the form ‘p/q’ to find out their simplest terms
Averages = (Sum of Values) / (Total Number of Values)
Percentage = (Number/Total Numbers) * 100
Percentage Change = [(New Value – Old Value) / Old Value] * 100
Understand the requirements for each of the DI questions. It includes - linear graphs, bar graphs, pie graphs, tables and mixed graphs.
Along with writing each kind of graph, note the example question to learn more about solving them.
Read and understand the question carefully, learn to understand what the graph suggests.
Understand the time required to solve such questions and learn to avoid such questions if they are too time-consuming.
1) Quiz 30, Q1
2) Quiz 60, Q1